Home › Pokédex › Gloom
#0044 · Generation I

Gloom

Grass / Poison · Weed Pokémon — first seen in Generation I.

Showing the official games. Pick a ROM hack to see how it changes this Pokémon, or compare all of them.

Base stats

StatBaseMinMax
HP60
230324
Attack65
121251
Defense70
130262
Sp. Attack85
157295
Sp. Defense75
139273
Speed40
76196
Total395

Min and max are at level 100: the minimum is 0 IVs, 0 EVs and a hindering nature, the maximum 31 IVs, 252 EVs and a beneficial nature. Shedinja's HP is always 1 whatever the formula says.

Type defences

Damage Gloom takes from each attacking type.

×2
FlyingFirePsychicIce
×½
FightingWaterElectricFairy
×¼
Grass
×1
NormalPoisonGroundRockBugGhostSteelDragonDark

Evolution

Methods are the current official ones. A ROM hack may change them — trade evolutions especially; the guide table below says which do.

Moves by official game

Level-up, TM/HM, tutor and egg moves exactly as each game has them. The newest game this site covers is open; the rest fold out.

Ultra Sun / Ultra Moon18 level-up · 25 TM/HM · 8 tutor

Level-up

LvMoveTypeCat.PowerAcc.PP
1AcidPoisonSpecial40100%30
1AbsorbGrassSpecial20100%25
1GrowthNormalStatus——20
1Sweet ScentNormalStatus—100%20
5Sweet ScentNormalStatus—100%20
9AcidPoisonSpecial40100%30
13Poison PowderPoisonStatus—75%35
14Stun SporeGrassStatus—75%30
15Sleep PowderGrassStatus—75%15
19Mega DrainGrassSpecial40100%15
24Lucky ChantNormalStatus——30
29MoonlightFairyStatus——5
34Giga DrainGrassSpecial75100%10
39ToxicPoisonStatus—90%10
44Natural GiftNormalPhysical—100%15
49Petal BlizzardGrassPhysical90100%15
54Grassy TerrainGrassStatus——10
59Petal DanceGrassSpecial120100%10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus—90%10
TM09VenoshockPoisonSpecial65100%10
TM10Hidden PowerNormalSpecial60100%15
TM100ConfideNormalStatus——20
TM11Sunny DayFireStatus——5
TM17ProtectNormalStatus——10
TM21FrustrationNormalPhysical—100%20
TM22Solar BeamGrassSpecial120100%10
TM27ReturnNormalPhysical—100%20
TM32Double TeamNormalStatus——15
TM36Sludge BombPoisonSpecial90100%10
TM42FacadeNormalPhysical70100%20
TM44RestPsychicStatus——5
TM45AttractNormalStatus—100%15
TM48RoundNormalSpecial60100%15
TM53Energy BallGrassSpecial90100%10
TM56FlingDarkPhysical—100%10
TM75Swords DanceNormalStatus——20
TM83InfestationBugSpecial20100%20
TM86Grass KnotGrassSpecial—100%20
TM87SwaggerNormalStatus—85%15
TM88Sleep TalkNormalStatus——10
TM90SubstituteNormalStatus——10
TM96Nature PowerNormalStatus——20
TM99Dazzling GleamFairySpecial80100%10

Move tutor

MoveTypeCat.PowerAcc.PP
SnoreNormalSpecial50100%15
Giga DrainGrassSpecial75100%10
SynthesisGrassStatus——5
Gastro AcidPoisonStatus—100%10
Worry SeedGrassStatus—100%10
Seed BombGrassPhysical80100%15
Drain PunchFightingPhysical75100%10
After YouNormalStatus——15
Sun / Moon18 level-up · 25 TM/HM

Level-up

LvMoveTypeCat.PowerAcc.PP
1AcidPoisonSpecial40100%30
1AbsorbGrassSpecial20100%25
1GrowthNormalStatus——20
1Sweet ScentNormalStatus—100%20
5Sweet ScentNormalStatus—100%20
9AcidPoisonSpecial40100%30
13Poison PowderPoisonStatus—75%35
14Stun SporeGrassStatus—75%30
15Sleep PowderGrassStatus—75%15
19Mega DrainGrassSpecial40100%15
24Lucky ChantNormalStatus——30
29MoonlightFairyStatus——5
34Giga DrainGrassSpecial75100%10
39ToxicPoisonStatus—90%10
44Natural GiftNormalPhysical—100%15
49Petal BlizzardGrassPhysical90100%15
54Grassy TerrainGrassStatus——10
59Petal DanceGrassSpecial120100%10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus—90%10
TM09VenoshockPoisonSpecial65100%10
TM10Hidden PowerNormalSpecial60100%15
TM100ConfideNormalStatus——20
TM11Sunny DayFireStatus——5
TM17ProtectNormalStatus——10
TM21FrustrationNormalPhysical—100%20
TM22Solar BeamGrassSpecial120100%10
TM27ReturnNormalPhysical—100%20
TM32Double TeamNormalStatus——15
TM36Sludge BombPoisonSpecial90100%10
TM42FacadeNormalPhysical70100%20
TM44RestPsychicStatus——5
TM45AttractNormalStatus—100%15
TM48RoundNormalSpecial60100%15
TM53Energy BallGrassSpecial90100%10
TM56FlingDarkPhysical—100%10
TM75Swords DanceNormalStatus——20
TM83InfestationBugSpecial20100%20
TM86Grass KnotGrassSpecial—100%20
TM87SwaggerNormalStatus—85%15
TM88Sleep TalkNormalStatus——10
TM90SubstituteNormalStatus——10
TM96Nature PowerNormalStatus——20
TM99Dazzling GleamFairySpecial80100%10
Omega Ruby / Alpha Sapphire17 level-up · 28 TM/HM · 8 tutor

Level-up

LvMoveTypeCat.PowerAcc.PP
1AcidPoisonSpecial40100%30
1AbsorbGrassSpecial20100%25
1Sweet ScentNormalStatus—100%20
5Sweet ScentNormalStatus—100%20
9AcidPoisonSpecial40100%30
13Poison PowderPoisonStatus—75%35
14Stun SporeGrassStatus—75%30
15Sleep PowderGrassStatus—75%15
19Mega DrainGrassSpecial40100%15
24Lucky ChantNormalStatus——30
29MoonlightFairyStatus——5
34Giga DrainGrassSpecial75100%10
39ToxicPoisonStatus—90%10
44Natural GiftNormalPhysical—100%15
49Petal BlizzardGrassPhysical90100%15
54Grassy TerrainGrassStatus——10
59Petal DanceGrassSpecial120100%10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus—90%10
TM09VenoshockPoisonSpecial65100%10
TM10Hidden PowerNormalSpecial60100%15
TM100ConfideNormalStatus——20
TM11Sunny DayFireStatus——5
TM17ProtectNormalStatus——10
TM21FrustrationNormalPhysical—100%20
TM22Solar BeamGrassSpecial120100%10
TM27ReturnNormalPhysical—100%20
TM32Double TeamNormalStatus——15
TM36Sludge BombPoisonSpecial90100%10
TM42FacadeNormalPhysical70100%20
TM44RestPsychicStatus——5
TM45AttractNormalStatus—100%15
TM48RoundNormalSpecial60100%15
TM53Energy BallGrassSpecial90100%10
TM56FlingDarkPhysical—100%10
TM70FlashNormalStatus—100%20
TM75Swords DanceNormalStatus——20
TM83InfestationBugSpecial20100%20
TM86Grass KnotGrassSpecial—100%20
TM87SwaggerNormalStatus—85%15
TM88Sleep TalkNormalStatus——10
TM90SubstituteNormalStatus——10
TM94Secret PowerNormalPhysical70100%20
TM96Nature PowerNormalStatus——20
TM99Dazzling GleamFairySpecial80100%10
HM01CutNormalPhysical5095%30

Move tutor

MoveTypeCat.PowerAcc.PP
SnoreNormalSpecial50100%15
Giga DrainGrassSpecial75100%10
SynthesisGrassStatus——5
Gastro AcidPoisonStatus—100%10
Worry SeedGrassStatus—100%10
Seed BombGrassPhysical80100%15
Drain PunchFightingPhysical75100%10
After YouNormalStatus——15
X / Y16 level-up · 27 TM/HM

Level-up

LvMoveTypeCat.PowerAcc.PP
1AcidPoisonSpecial40100%30
1AbsorbGrassSpecial20100%25
1Sweet ScentNormalStatus—100%20
5Sweet ScentNormalStatus—100%20
9AcidPoisonSpecial40100%30
13Poison PowderPoisonStatus—75%35
15Stun SporeGrassStatus—75%30
17Sleep PowderGrassStatus—75%15
23Mega DrainGrassSpecial40100%15
29Lucky ChantNormalStatus——30
35Natural GiftNormalPhysical—100%15
41MoonlightFairyStatus——5
47Giga DrainGrassSpecial75100%10
50Petal BlizzardGrassPhysical90100%15
53Petal DanceGrassSpecial120100%10
56Grassy TerrainGrassStatus——10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus—90%10
TM09VenoshockPoisonSpecial65100%10
TM10Hidden PowerNormalSpecial60100%15
TM100ConfideNormalStatus——20
TM11Sunny DayFireStatus——5
TM17ProtectNormalStatus——10
TM21FrustrationNormalPhysical—100%20
TM22Solar BeamGrassSpecial120100%10
TM27ReturnNormalPhysical—100%20
TM32Double TeamNormalStatus——15
TM36Sludge BombPoisonSpecial90100%10
TM42FacadeNormalPhysical70100%20
TM44RestPsychicStatus——5
TM45AttractNormalStatus—100%15
TM48RoundNormalSpecial60100%15
TM53Energy BallGrassSpecial90100%10
TM56FlingDarkPhysical—100%10
TM70FlashNormalStatus—100%20
TM75Swords DanceNormalStatus——20
TM83InfestationBugSpecial20100%20
TM86Grass KnotGrassSpecial—100%20
TM87SwaggerNormalStatus—85%15
TM88Sleep TalkNormalStatus——10
TM90SubstituteNormalStatus——10
TM96Nature PowerNormalStatus——20
TM99Dazzling GleamFairySpecial80100%10
HM01CutNormalPhysical5095%30
Black 2 / White 214 level-up · 22 TM/HM · 9 tutor

Level-up

LvMoveTypeCat.PowerAcc.PP
1AcidPoisonSpecial40100%30
1AbsorbGrassSpecial20100%25
1Sweet ScentNormalStatus—100%20
5Sweet ScentNormalStatus—100%20
9AcidPoisonSpecial40100%30
13Poison PowderPoisonStatus—75%35
15Stun SporeGrassStatus—75%30
17Sleep PowderGrassStatus—75%15
23Mega DrainGrassSpecial40100%15
29Lucky ChantNormalStatus——30
35Natural GiftNormalPhysical—100%15
41MoonlightFairyStatus——5
47Giga DrainGrassSpecial75100%10
53Petal DanceGrassSpecial120100%10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus—90%10
TM09VenoshockPoisonSpecial65100%10
TM10Hidden PowerNormalSpecial60100%15
TM11Sunny DayFireStatus——5
TM17ProtectNormalStatus——10
TM21FrustrationNormalPhysical—100%20
TM22Solar BeamGrassSpecial120100%10
TM27ReturnNormalPhysical—100%20
TM32Double TeamNormalStatus——15
TM36Sludge BombPoisonSpecial90100%10
TM42FacadeNormalPhysical70100%20
TM44RestPsychicStatus——5
TM45AttractNormalStatus—100%15
TM48RoundNormalSpecial60100%15
TM53Energy BallGrassSpecial90100%10
TM56FlingDarkPhysical—100%10
TM70FlashNormalStatus—100%20
TM75Swords DanceNormalStatus——20
TM86Grass KnotGrassSpecial—100%20
TM87SwaggerNormalStatus—85%15
TM90SubstituteNormalStatus——10
HM01CutNormalPhysical5095%30

Move tutor

MoveTypeCat.PowerAcc.PP
SnoreNormalSpecial50100%15
Giga DrainGrassSpecial75100%10
Sleep TalkNormalStatus——10
SynthesisGrassStatus——5
Gastro AcidPoisonStatus—100%10
Worry SeedGrassStatus—100%10
Seed BombGrassPhysical80100%15
Drain PunchFightingPhysical75100%10
After YouNormalStatus——15
Black / White14 level-up · 22 TM/HM

Level-up

LvMoveTypeCat.PowerAcc.PP
1AcidPoisonSpecial40100%30
1AbsorbGrassSpecial20100%25
1Sweet ScentNormalStatus—100%20
5Sweet ScentNormalStatus—100%20
9AcidPoisonSpecial40100%30
13Poison PowderPoisonStatus—75%35
15Stun SporeGrassStatus—75%30
17Sleep PowderGrassStatus—75%15
23Mega DrainGrassSpecial40100%15
29Lucky ChantNormalStatus——30
35Natural GiftNormalPhysical—100%15
41MoonlightFairyStatus——5
47Giga DrainGrassSpecial75100%10
53Petal DanceGrassSpecial120100%10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus—90%10
TM09VenoshockPoisonSpecial65100%10
TM10Hidden PowerNormalSpecial60100%15
TM11Sunny DayFireStatus——5
TM17ProtectNormalStatus——10
TM21FrustrationNormalPhysical—100%20
TM22Solar BeamGrassSpecial120100%10
TM27ReturnNormalPhysical—100%20
TM32Double TeamNormalStatus——15
TM36Sludge BombPoisonSpecial90100%10
TM42FacadeNormalPhysical70100%20
TM44RestPsychicStatus——5
TM45AttractNormalStatus—100%15
TM48RoundNormalSpecial60100%15
TM53Energy BallGrassSpecial90100%10
TM56FlingDarkPhysical—100%10
TM70FlashNormalStatus—100%20
TM75Swords DanceNormalStatus——20
TM86Grass KnotGrassSpecial—100%20
TM87SwaggerNormalStatus—85%15
TM90SubstituteNormalStatus——10
HM01CutNormalPhysical5095%30
HeartGold / SoulSilver14 level-up · 28 TM/HM · 5 tutor

Level-up

LvMoveTypeCat.PowerAcc.PP
1AcidPoisonSpecial40100%30
1AbsorbGrassSpecial20100%25
1Sweet ScentNormalStatus—100%20
5Sweet ScentNormalStatus—100%20
9AcidPoisonSpecial40100%30
13Poison PowderPoisonStatus—75%35
15Stun SporeGrassStatus—75%30
17Sleep PowderGrassStatus—75%15
23Mega DrainGrassSpecial40100%15
29Lucky ChantNormalStatus——30
35Natural GiftNormalPhysical—100%15
41MoonlightFairyStatus——5
47Giga DrainGrassSpecial75100%10
53Petal DanceGrassSpecial120100%10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus—90%10
TM09Bullet SeedGrassPhysical25100%30
TM10Hidden PowerNormalSpecial60100%15
TM11Sunny DayFireStatus——5
TM17ProtectNormalStatus——10
TM19Giga DrainGrassSpecial75100%10
TM21FrustrationNormalPhysical—100%20
TM22Solar BeamGrassSpecial120100%10
TM27ReturnNormalPhysical—100%20
TM32Double TeamNormalStatus——15
TM36Sludge BombPoisonSpecial90100%10
TM42FacadeNormalPhysical70100%20
TM43Secret PowerNormalPhysical70100%20
TM44RestPsychicStatus——5
TM45AttractNormalStatus—100%15
TM53Energy BallGrassSpecial90100%10
TM56FlingDarkPhysical—100%10
TM58EndureNormalStatus——10
TM60Drain PunchFightingPhysical75100%10
TM70FlashNormalStatus—100%20
TM75Swords DanceNormalStatus——20
TM78CaptivateNormalStatus—100%20
TM82Sleep TalkNormalStatus——10
TM83Natural GiftNormalPhysical—100%15
TM86Grass KnotGrassSpecial—100%20
TM87SwaggerNormalStatus—85%15
TM90SubstituteNormalStatus——10
HM01CutNormalPhysical5095%30

Move tutor

MoveTypeCat.PowerAcc.PP
SnoreNormalSpecial50100%15
SynthesisGrassStatus——5
Gastro AcidPoisonStatus—100%10
Worry SeedGrassStatus—100%10
Seed BombGrassPhysical80100%15
Platinum14 level-up · 28 TM/HM · 4 tutor

Level-up

LvMoveTypeCat.PowerAcc.PP
1AcidPoisonSpecial40100%30
1AbsorbGrassSpecial20100%25
1Sweet ScentNormalStatus—100%20
5Sweet ScentNormalStatus—100%20
9AcidPoisonSpecial40100%30
13Poison PowderPoisonStatus—75%35
15Stun SporeGrassStatus—75%30
17Sleep PowderGrassStatus—75%15
23Mega DrainGrassSpecial40100%15
29Lucky ChantNormalStatus——30
35Natural GiftNormalPhysical—100%15
41MoonlightFairyStatus——5
47Giga DrainGrassSpecial75100%10
53Petal DanceGrassSpecial120100%10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus—90%10
TM09Bullet SeedGrassPhysical25100%30
TM10Hidden PowerNormalSpecial60100%15
TM11Sunny DayFireStatus——5
TM17ProtectNormalStatus——10
TM19Giga DrainGrassSpecial75100%10
TM21FrustrationNormalPhysical—100%20
TM22Solar BeamGrassSpecial120100%10
TM27ReturnNormalPhysical—100%20
TM32Double TeamNormalStatus——15
TM36Sludge BombPoisonSpecial90100%10
TM42FacadeNormalPhysical70100%20
TM43Secret PowerNormalPhysical70100%20
TM44RestPsychicStatus——5
TM45AttractNormalStatus—100%15
TM53Energy BallGrassSpecial90100%10
TM56FlingDarkPhysical—100%10
TM58EndureNormalStatus——10
TM60Drain PunchFightingPhysical75100%10
TM70FlashNormalStatus—100%20
TM75Swords DanceNormalStatus——20
TM78CaptivateNormalStatus—100%20
TM82Sleep TalkNormalStatus——10
TM83Natural GiftNormalPhysical—100%15
TM86Grass KnotGrassSpecial—100%20
TM87SwaggerNormalStatus—85%15
TM90SubstituteNormalStatus——10
HM01CutNormalPhysical5095%30

Move tutor

MoveTypeCat.PowerAcc.PP
SnoreNormalSpecial50100%15
SynthesisGrassStatus——5
Gastro AcidPoisonStatus—100%10
Seed BombGrassPhysical80100%15
Diamond / Pearl14 level-up · 28 TM/HM

Level-up

LvMoveTypeCat.PowerAcc.PP
1AcidPoisonSpecial40100%30
1AbsorbGrassSpecial20100%25
1Sweet ScentNormalStatus—100%20
5Sweet ScentNormalStatus—100%20
9AcidPoisonSpecial40100%30
13Poison PowderPoisonStatus—75%35
15Stun SporeGrassStatus—75%30
17Sleep PowderGrassStatus—75%15
23Mega DrainGrassSpecial40100%15
29Lucky ChantNormalStatus——30
35Natural GiftNormalPhysical—100%15
41MoonlightFairyStatus——5
47Giga DrainGrassSpecial75100%10
53Petal DanceGrassSpecial120100%10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus—90%10
TM09Bullet SeedGrassPhysical25100%30
TM10Hidden PowerNormalSpecial60100%15
TM11Sunny DayFireStatus——5
TM17ProtectNormalStatus——10
TM19Giga DrainGrassSpecial75100%10
TM21FrustrationNormalPhysical—100%20
TM22Solar BeamGrassSpecial120100%10
TM27ReturnNormalPhysical—100%20
TM32Double TeamNormalStatus——15
TM36Sludge BombPoisonSpecial90100%10
TM42FacadeNormalPhysical70100%20
TM43Secret PowerNormalPhysical70100%20
TM44RestPsychicStatus——5
TM45AttractNormalStatus—100%15
TM53Energy BallGrassSpecial90100%10
TM56FlingDarkPhysical—100%10
TM58EndureNormalStatus——10
TM60Drain PunchFightingPhysical75100%10
TM70FlashNormalStatus—100%20
TM75Swords DanceNormalStatus——20
TM78CaptivateNormalStatus—100%20
TM82Sleep TalkNormalStatus——10
TM83Natural GiftNormalPhysical—100%15
TM86Grass KnotGrassSpecial—100%20
TM87SwaggerNormalStatus—85%15
TM90SubstituteNormalStatus——10
HM01CutNormalPhysical5095%30
FireRed / LeafGreen10 level-up · 17 TM/HM · 4 tutor

Level-up

LvMoveTypeCat.PowerAcc.PP
1AbsorbGrassSpecial20100%25
1Poison PowderPoisonStatus—75%35
1Sweet ScentNormalStatus—100%20
7Sweet ScentNormalStatus—100%20
14Poison PowderPoisonStatus—75%35
16Stun SporeGrassStatus—75%30
18Sleep PowderGrassStatus—75%15
24AcidPoisonSpecial40100%30
35MoonlightFairyStatus——5
44Petal DanceGrassSpecial120100%10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus—90%10
TM09Bullet SeedGrassPhysical25100%30
TM10Hidden PowerNormalSpecial60100%15
TM11Sunny DayFireStatus——5
TM17ProtectNormalStatus——10
TM19Giga DrainGrassSpecial75100%10
TM21FrustrationNormalPhysical—100%20
TM22Solar BeamGrassSpecial120100%10
TM27ReturnNormalPhysical—100%20
TM32Double TeamNormalStatus——15
TM36Sludge BombPoisonSpecial90100%10
TM42FacadeNormalPhysical70100%20
TM43Secret PowerNormalPhysical70100%20
TM44RestPsychicStatus——5
TM45AttractNormalStatus—100%15
HM01CutNormalPhysical5095%30
HM05FlashNormalStatus—100%20

Move tutor

MoveTypeCat.PowerAcc.PP
Swords DanceNormalStatus——20
Double-EdgeNormalPhysical120100%15
MimicNormalStatus——10
SubstituteNormalStatus——10
Emerald10 level-up · 17 TM/HM · 8 tutor

Level-up

LvMoveTypeCat.PowerAcc.PP
1AbsorbGrassSpecial20100%25
1Poison PowderPoisonStatus—75%35
1Sweet ScentNormalStatus—100%20
7Sweet ScentNormalStatus—100%20
14Poison PowderPoisonStatus—75%35
16Stun SporeGrassStatus—75%30
18Sleep PowderGrassStatus—75%15
24AcidPoisonSpecial40100%30
35MoonlightFairyStatus——5
44Petal DanceGrassSpecial120100%10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus—90%10
TM09Bullet SeedGrassPhysical25100%30
TM10Hidden PowerNormalSpecial60100%15
TM11Sunny DayFireStatus——5
TM17ProtectNormalStatus——10
TM19Giga DrainGrassSpecial75100%10
TM21FrustrationNormalPhysical—100%20
TM22Solar BeamGrassSpecial120100%10
TM27ReturnNormalPhysical—100%20
TM32Double TeamNormalStatus——15
TM36Sludge BombPoisonSpecial90100%10
TM42FacadeNormalPhysical70100%20
TM43Secret PowerNormalPhysical70100%20
TM44RestPsychicStatus——5
TM45AttractNormalStatus—100%15
HM01CutNormalPhysical5095%30
HM05FlashNormalStatus—100%20

Move tutor

MoveTypeCat.PowerAcc.PP
Swords DanceNormalStatus——20
Double-EdgeNormalPhysical120100%15
MimicNormalStatus——10
SubstituteNormalStatus——10
SnoreNormalSpecial50100%15
EndureNormalStatus——10
SwaggerNormalStatus—85%15
Sleep TalkNormalStatus——10
Ruby / Sapphire10 level-up · 17 TM/HM

Level-up

LvMoveTypeCat.PowerAcc.PP
1AbsorbGrassSpecial20100%25
1Poison PowderPoisonStatus—75%35
1Sweet ScentNormalStatus—100%20
7Sweet ScentNormalStatus—100%20
14Poison PowderPoisonStatus—75%35
16Stun SporeGrassStatus—75%30
18Sleep PowderGrassStatus—75%15
24AcidPoisonSpecial40100%30
35MoonlightFairyStatus——5
44Petal DanceGrassSpecial120100%10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM06ToxicPoisonStatus—90%10
TM09Bullet SeedGrassPhysical25100%30
TM10Hidden PowerNormalSpecial60100%15
TM11Sunny DayFireStatus——5
TM17ProtectNormalStatus——10
TM19Giga DrainGrassSpecial75100%10
TM21FrustrationNormalPhysical—100%20
TM22Solar BeamGrassSpecial120100%10
TM27ReturnNormalPhysical—100%20
TM32Double TeamNormalStatus——15
TM36Sludge BombPoisonSpecial90100%10
TM42FacadeNormalPhysical70100%20
TM43Secret PowerNormalPhysical70100%20
TM44RestPsychicStatus——5
TM45AttractNormalStatus—100%15
HM01CutNormalPhysical5095%30
HM05FlashNormalStatus—100%20
Crystal10 level-up · 20 TM/HM

Level-up

LvMoveTypeCat.PowerAcc.PP
1AbsorbGrassSpecial20100%25
1Poison PowderPoisonStatus—75%35
1Sweet ScentNormalStatus—100%20
7Sweet ScentNormalStatus—100%20
14Poison PowderPoisonStatus—75%35
16Stun SporeGrassStatus—75%30
18Sleep PowderGrassStatus—75%15
24AcidPoisonSpecial40100%30
35MoonlightFairyStatus——5
44Petal DanceGrassSpecial120100%10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM03CurseGhostStatus——10
TM06ToxicPoisonStatus—90%10
TM10Hidden PowerNormalSpecial60100%15
TM11Sunny DayFireStatus——5
TM12Sweet ScentNormalStatus—100%20
TM13SnoreNormalSpecial50100%15
TM17ProtectNormalStatus——10
TM19Giga DrainGrassSpecial75100%10
TM20EndureNormalStatus——10
TM21FrustrationNormalPhysical—100%20
TM22Solar BeamGrassSpecial120100%10
TM27ReturnNormalPhysical—100%20
TM32Double TeamNormalStatus——15
TM34SwaggerNormalStatus—85%15
TM35Sleep TalkNormalStatus——10
TM36Sludge BombPoisonSpecial90100%10
TM44RestPsychicStatus——5
TM45AttractNormalStatus—100%15
HM01CutNormalPhysical5095%30
HM05FlashNormalStatus—100%20
Gold / Silver10 level-up · 20 TM/HM

Level-up

LvMoveTypeCat.PowerAcc.PP
1AbsorbGrassSpecial20100%25
1Poison PowderPoisonStatus—75%35
1Sweet ScentNormalStatus—100%20
7Sweet ScentNormalStatus—100%20
14Poison PowderPoisonStatus—75%35
16Stun SporeGrassStatus—75%30
18Sleep PowderGrassStatus—75%15
24AcidPoisonSpecial40100%30
35MoonlightFairyStatus——5
44Petal DanceGrassSpecial120100%10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM03CurseGhostStatus——10
TM06ToxicPoisonStatus—90%10
TM10Hidden PowerNormalSpecial60100%15
TM11Sunny DayFireStatus——5
TM12Sweet ScentNormalStatus—100%20
TM13SnoreNormalSpecial50100%15
TM17ProtectNormalStatus——10
TM19Giga DrainGrassSpecial75100%10
TM20EndureNormalStatus——10
TM21FrustrationNormalPhysical—100%20
TM22Solar BeamGrassSpecial120100%10
TM27ReturnNormalPhysical—100%20
TM32Double TeamNormalStatus——15
TM34SwaggerNormalStatus—85%15
TM35Sleep TalkNormalStatus——10
TM36Sludge BombPoisonSpecial90100%10
TM44RestPsychicStatus——5
TM45AttractNormalStatus—100%15
HM01CutNormalPhysical5095%30
HM05FlashNormalStatus—100%20
Yellow9 level-up · 14 TM/HM

Level-up

LvMoveTypeCat.PowerAcc.PP
1AbsorbGrassSpecial20100%25
1Poison PowderPoisonStatus—75%35
1Stun SporeGrassStatus—75%30
15Poison PowderPoisonStatus—75%35
17Stun SporeGrassStatus—75%30
19Sleep PowderGrassStatus—75%15
28AcidPoisonSpecial40100%30
38Petal DanceGrassSpecial120100%10
52Solar BeamGrassSpecial120100%10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM03Swords DanceNormalStatus——20
TM06ToxicPoisonStatus—90%10
TM09Take DownNormalPhysical9085%20
TM10Double-EdgeNormalPhysical120100%15
TM20RageNormalPhysical20100%20
TM21Mega DrainGrassSpecial40100%15
TM22Solar BeamGrassSpecial120100%10
TM31MimicNormalStatus——10
TM32Double TeamNormalStatus——15
TM33ReflectPsychicStatus——20
TM34BideNormalPhysical——10
TM44RestPsychicStatus——5
TM50SubstituteNormalStatus——10
HM01CutNormalPhysical5095%30
Red / Blue9 level-up · 14 TM/HM

Level-up

LvMoveTypeCat.PowerAcc.PP
1AbsorbGrassSpecial20100%25
1Poison PowderPoisonStatus—75%35
1Stun SporeGrassStatus—75%30
15Poison PowderPoisonStatus—75%35
17Stun SporeGrassStatus—75%30
19Sleep PowderGrassStatus—75%15
28AcidPoisonSpecial40100%30
38Petal DanceGrassSpecial120100%10
52Solar BeamGrassSpecial120100%10

TM & HM

TMMoveTypeCat.PowerAcc.PP
TM03Swords DanceNormalStatus——20
TM06ToxicPoisonStatus—90%10
TM09Take DownNormalPhysical9085%20
TM10Double-EdgeNormalPhysical120100%15
TM20RageNormalPhysical20100%20
TM21Mega DrainGrassSpecial40100%15
TM22Solar BeamGrassSpecial120100%10
TM31MimicNormalStatus——10
TM32Double TeamNormalStatus——15
TM33ReflectPsychicStatus——20
TM34BideNormalPhysical——10
TM44RestPsychicStatus——5
TM50SubstituteNormalStatus——10
HM01CutNormalPhysical5095%30

Where to find it in the official games

Every area in the 16 official games on this site that has it, from each game's own encounter tables.

In the wild

GameAreaMethodLevelsRate
Red / BlueRoute 12 rareGrass28-305%
Red / BlueRoute 13 rareGrass28-305%
Red / BlueRoute 14 rareGrass305%
Red / BlueRoute 15 rareGrass305%
YellowCerulean CaveGrass55-5810%
YellowRoute 12 rareGrass295%
YellowRoute 13 rareGrass295%
YellowRoute 14 rareGrass305%
YellowRoute 15 rareGrass305%
Gold / SilverRoute 5Grass
night
1510%
CrystalRoute 24 rareGrass
night
145%
Ruby / SapphireRoute 121 rareGrass285%
Ruby / SapphireRoute 123 rareGrass285%
Ruby / SapphireSafari ZoneGrass25-3115%
EmeraldRoute 121 rareGrass285%
EmeraldRoute 123 rareGrass285%
EmeraldSafari ZoneGrass25-3115%
FireRed / LeafGreenBerry ForestGrass3520%
FireRed / LeafGreenBond BridgeGrass3610%
FireRed / LeafGreenCape BrinkGrass36-3815%
FireRed / LeafGreenRoute 12 rareGrass28-305%
FireRed / LeafGreenRoute 13 rareGrass28-305%
FireRed / LeafGreenRoute 14 rareGrass305%
FireRed / LeafGreenRoute 15 rareGrass28-305%
FireRed / LeafGreenWater Path rareGrass485%
Diamond / PearlRoute 224 rareGrass
morning, Emerald in the GBA slot, morning, FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot, morning, Poké Radar, Emerald in the GBA slot, morning, Poké Radar, FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot, night, Emerald in the GBA slot, night, FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot, night, Poké Radar, Emerald in the GBA slot, night, Poké Radar, FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot, swarm, morning, Emerald in the GBA slot, swarm, morning, FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot, swarm, morning, Poké Radar, Emerald in the GBA slot, swarm, morning, Poké Radar, FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot, swarm, night, Emerald in the GBA slot, swarm, night, FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot, swarm, night, Poké Radar, Emerald in the GBA slot, swarm, night, Poké Radar, FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot
535%
Diamond / PearlRoute 229Grass
Emerald in the GBA slot, FireRed in the GBA slot / LeafGreen in the GBA slot, Poké Radar, Emerald in the GBA slot, Poké Radar, FireRed in the GBA slot / LeafGreen in the GBA slot, Poké Radar, Ruby in the GBA slot, Poké Radar, Sapphire in the GBA slot, Ruby in the GBA slot, Sapphire in the GBA slot, morning, Emerald in the GBA slot, morning, FireRed in the GBA slot / LeafGreen in the GBA slot, morning, Poké Radar, Emerald in the GBA slot, morning, Poké Radar, FireRed in the GBA slot / LeafGreen in the GBA slot, morning, Poké Radar, Ruby in the GBA slot, morning, Poké Radar, Sapphire in the GBA slot, morning, Ruby in the GBA slot, morning, Sapphire in the GBA slot, night, Emerald in the GBA slot, night, FireRed in the GBA slot / LeafGreen in the GBA slot, night, Poké Radar, Emerald in the GBA slot, night, Poké Radar, FireRed in the GBA slot / LeafGreen in the GBA slot, night, Poké Radar, Ruby in the GBA slot, night, Poké Radar, Sapphire in the GBA slot, night, Ruby in the GBA slot, night, Sapphire in the GBA slot, swarm, Emerald in the GBA slot, swarm, FireRed in the GBA slot / LeafGreen in the GBA slot, swarm, Poké Radar, Emerald in the GBA slot, swarm, Poké Radar, FireRed in the GBA slot / LeafGreen in the GBA slot, swarm, Poké Radar, Ruby in the GBA slot, swarm, Poké Radar, Sapphire in the GBA slot, swarm, Ruby in the GBA slot, swarm, Sapphire in the GBA slot
51-5230%
Diamond / PearlSea Route 230Grass
Poké Radar
5020%
PlatinumRoute 224 rareGrass
morning, Emerald in the GBA slot, morning, FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot, night, Emerald in the GBA slot, night, FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot, swarm, morning, Emerald in the GBA slot, swarm, morning, FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot, swarm, night, Emerald in the GBA slot, swarm, night, FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot
515%
PlatinumSea Route 230 rareGrass
morning, morning, Emerald in the GBA slot / FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot, morning, Poké Radar, morning, Poké Radar, Emerald in the GBA slot / FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot, night, night, Emerald in the GBA slot / FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot, night, Poké Radar, night, Poké Radar, Emerald in the GBA slot / FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot, swarm, morning, swarm, morning, Emerald in the GBA slot / FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot, swarm, morning, Poké Radar, swarm, morning, Poké Radar, Emerald in the GBA slot / FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot, swarm, night, swarm, night, Emerald in the GBA slot / FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot, swarm, night, Poké Radar, swarm, night, Poké Radar, Emerald in the GBA slot / FireRed in the GBA slot / LeafGreen in the GBA slot / Ruby in the GBA slot / Sapphire in the GBA slot
495%
HeartGold / SoulSilverJohto Safari ZoneGrass
night, plains min 2
16-42100%
HeartGold / SoulSilverRoute 47 rareGrass
morning, morning, Hoenn Sound, morning, Sinnoh Sound, night, night, Hoenn Sound, night, Sinnoh Sound, swarm, swarm, Hoenn Sound, swarm, Sinnoh Sound
325%
HeartGold / SoulSilverRoute 48Grass
morning, night
22-2420%
HeartGold / SoulSilverRoute 5Grass
night, night, Hoenn Sound, night, Sinnoh Sound
1510%

Where to find it in the ROM hacks

51 guides on this site put it somewhere you can catch it. Areas link to that guide's own route page, with its own rates and levels.

GuideWhere
Unbound
Cootes BogNight · Lv 49-52 · 10%
Route 14 BNight · Lv 37-40 · 10%
Route 14 CNight · Lv 37-40 · 10%
Pokémon Soulgold
Route 48Grass · Lv 30-33 · 30%
Pokémon Heart & Soul
Route 47Grass · Lv 33-40 · 5%rare
Route 48Grass · Lv 22-26 · 20%
Route 24Grass · Lv 45-47 · 2%rare
Infinite Fusion
Route 6Grass (Night) (Classic) · Lv 13-16 · 20%
Route 12Grass (Day) (Classic) · Lv 28-30 · 5%rare
Route 12Grass (Morning) (Classic) · Lv 28-30 · 5%rare
and 26 more areas
Sword and Shield Ultimate Plus
Wild Area 2 (Bear)Raid Den · Lv — · 2
Wild Area 4 EastRaid Den · Lv — · 2
Wild Area 4 WestRaid Den · Lv — · 2
and 4 more areas
Pokémon Odyssey
Fourth Stratum (1-2)Grass · Lv 36-40 · 15%
Blaze Black 2 Redux & Volt White 2 Redux
Abundant ShrineGrass · Lv 41-44 · 10%
Abundant ShrineDoubles Grass · Lv 42-46 · 10%
Route 22Grass · Lv 53-56 · 10%
and 2 more areas
Pokémon Phoenix Red
Cerulean CityGrass · Lv 16 · 20%
Water PathGrass · Lv 48 · 5%
Elite Redux
Safari Zone NorthGrass · Lv — · 20%
Route 123Grass · Lv — · 9%
Pokémon GS Chronicles
Route 44Wild · Lv —
Pokémon Emerald Kaizo
Route 113Grass · Lv 30 · 4%rare
Route 118Grass · Lv 41 · 5%rare
Route 121Grass · Lv 50 · 5%rare
Inclement Emerald
Route 123Grass · Lv Scales · 10%
Safari ZoneGrass · Lv Scales · 20%
Renegade Platinum
Route 212 ~ NorthMorning · Lv 24-26 · 10%
Route 212 ~ NorthDay · Lv 24-26 · 10%
Route 212 ~ NorthNight · Lv 24-26 · 10%
Pokémon FireRed & LeafGreen+
Route 12Grass · Lv 28-30 · 5%rare
Route 13Grass · Lv 28-30 · 5%rare
Route 14Grass · Lv 30 · 5%rare
and 5 more areas
Pokémon Aesthetic Red
Route 12Grass / Cave · Lv ?
Route 13Grass / Cave · Lv ?
Water PathGrass / Cave · Lv ?
Pokemon Modern Emerald
Route 121Grass (day) · Lv 28 · 5%rare
Route 121Grass (day) · Lv 28 · 10%
Route 121Grass (night) · Lv 28 · 5%rare
and 16 more areas
Pokémon Crystal Inheritance
Route 38Grass (morning/night) · Lv 33 · 13%
Route 39Grass (morning/night) · Lv 33 · 13%
Pokémon Crippling Medical Debt Edition
Mauville CityGrass · Lv 21-26 · 20%
Pokémon Emerald Ex
Route 121Grass · Lv ? · 10%
Route 123Grass · Lv ? · 10%
Pokémon Valiant
Route 121Grass · Lv 28 · 5%rare
Route EGrass · Lv 31-34 · 10%
Safari Zone NorthGrass · Lv 29-31 · 15%
and 12 more areas
Gaia
Telmurk SwampGrass · Lv — · 10%
Battle MarshGrass · Lv — · 10%
Pokémon Platinum Kaizo
Eterna CityGrass · Lv 20 · 20%
Lost Tower 1FNight · Lv 24 · 10%
Pokémon Classic
Route 12Grass (night) · Lv 29 · 5%rare
Route 13Grass (night) · Lv 29 · 5%rare
Route 14DexNav (grass) (night) · Lv 26-28 · 30%
and 5 more areas
Pokémon Exceeded
Route 121Grass (morning) · Lv 28 · 10%
Route 121Grass (night) · Lv 26 · 20%
Route 122Grass (morning) · Lv 28 · 10%
and 3 more areas
Pokémon WaveBlue
Berry ForestGrass · Lv 35 · 20%
Cape BrinkGrass · Lv 36 · 10%
Bond BridgeGrass · Lv 36 · 10%
and 5 more areas
Pokémon Hoenn's Last Wish
Dewdrop JungleGrass · Lv 15-20 · 5%rare
Route 121Grass (morning) · Lv 34-40 · 5%rare
Route 123Grass (morning) · Lv 28 · 5%rare
and 4 more areas
Low Budget Crystal
Route 119 NorthGrass · Lv Base+1 · 30%
Route 24Grass (night) · Lv Base+3, Base+5 · 5%rare
Pokémon Emerald Squared
Route 119Land · Lv 35-45 · 5%
Mauville CityLand · Lv 22-27 · 5%
Pokémon FireRed Reignited & LeafGreen Regrown
Route 12Grass · Lv 30 · 5%rare
Route 12Grass after the wish · Lv 30 · 5%rare
Route 13Grass · Lv 28 · 4%rare
and 8 more areas
Pokémon Polished Crystal
Cerulean CapeGrass (night) · Lv 49-50 · 15%
Noisy ForestGrass (night) · Lv Base+2 · 5%rare
Route 12 SouthGrass (night) · Lv 51 · 10%
and 12 more areas
Sacred Gold & Storm Silver
Ilex ForestMeridian Sound · Lv —
Route 47Grass (morning/day) · Lv 41-45 · 10%
Route 47Grass (night) · Lv 41-45 · 10%
and 10 more areas
Blaze Black 2 & Volt White 2
Route 22Grass · Lv 45 · 10%
Route 22Doubles Grass · Lv 49 · 10%
Route 22Hidden Grotto (rare) · Lv 47-52
and 1 more area
Pokémon SoothingSilver
Route 47Grass (morning/day) · Lv 32 · 5%rare
Route 47Grass (night) · Lv 32 · 5%rare
Route 48Grass (morning/day) · Lv 26 · 10%
and 4 more areas
Pokémon Definitive Platinum
Route 212 (1)Grass · Lv 32 · 10%
Great MarshGrass · Lv 31 · 5%
Rising Ruby & Sinking Sapphire
Route 119 (Mauville)Tall Grass · Lv 36
Route 119 (Fortree)Tall Grass · Lv 38
Blaze Black & Volt White
Pinwheel Forest — InsideDoubles Grass · Lv — · 10%
Route 13Doubles Grass · Lv — · 10%
Giant Chasm — Outside AreaDoubles Grass · Lv — · 10%
Fire Red Omega
Route 12Grass · Lv —
Route 14Grass · Lv —
Safari ZoneGrass · Lv —
and 2 more areas
Pokémon FireRed: Rocket Edition
Rocket Warehouse (area 3)Grass · Lv 36-38 · 15%
Route 12Grass · Lv 21-22 · 5%rare
Route 13Grass · Lv 21-22 · 5%rare
and 2 more areas
Pokemon Kanto Expansion Pak
Route 12Grass · Lv 26 · 5.1%
Route 13Grass · Lv 27-28 · 5.5%rare
Route 21Grass · Lv 28 · 9.8%
and 2 more areas
Pokémon Peridot Version
Occident ForestGrass (morning) · Lv 20 · 10%
Occident ForestGrass (night) · Lv 20-22 · 50%
Past Occident ForestGrass (morning) · Lv 17 · 10%
and 4 more areas
HeartGold Generations
Route 5Grass (night) · Lv 15 · 10%
Route 5Grass (night, Hoenn Sound) · Lv 15 · 10%
Route 5Grass (night, Sinnoh Sound) · Lv 15 · 10%
Pokémon FireRed Deluxe
Route 12Grass · Lv 28-31 · 20%
Route 14Grass · Lv 35-36 · 20%
Route 15Grass · Lv 35-37 · 11%
and 1 more area
Pokémon Platinum Redux
Route 209Grass · Lv ? · 20%
Lost GraveyardPalmer · Lv ?
Pokémon Emerald Blitz
Route 121Grass · Lv 28 · 5%rare
Route 123Grass · Lv 28 · 5%rare
Safari ZoneGrass · Lv 25 · 5%rare
and 3 more areas
Pokémon Sour Crystal
Route 47Grass (morning) · Lv 22 · 1%rare
Route 47Grass (morning) · Lv 26 · 1%rare
Route 47Grass (day) · Lv 22 · 1%rare
and 16 more areas
Pokémon Project Nova
Paradise ParkGrass · Lv 27 · 15%
Pokémon Mirror Gold
National ParkGrass (swarm) · Lv ?
Route 15Grass (Morning / Day) · Lv 64 · 20%
Route 15Grass (swarm) · Lv ?
Pokémon Timeless Diamond & Spaceless Pearl
Route 224Walking (Morning) · Lv 57 · 4%
Route 224Walking (Day) · Lv 57 · 4%
Route 224Walking (Night) · Lv 57 · 4%
and 3 more areas
Pokémon Crystal Legacy
Route 24Grass (night) · Lv 14 · 5%rare
Pokémon Emerald Seaglass
Route 121Grass · Lv 26 · 10%
Pokémon Yellow Legacy
Route 12Grass · Lv 29 · 5%
Route 13Grass · Lv 27 · 10%
Route 14Grass · Lv 28-30 · 15%
and 1 more area
Emerald Roguenot in the wild in this guide's tables — evolve, trade or battle it
Pokémon Too Many Types 2not in the wild in this guide's tables — evolve, trade or battle it
Pokémon R.O.W.Enot in the wild in this guide's tables — evolve, trade or battle it
Celia's Stupid Romhacknot in the wild in this guide's tables — evolve, trade or battle it
Radical Rednot in the wild in this guide's tables — evolve, trade or battle it
Pokémon Odyssey II: Heroes of Lemurianot in the wild in this guide's tables — evolve, trade or battle it
Pokémon Emerald Imperiumnot in the wild in this guide's tables — evolve, trade or battle it
Pokémon: Wishes of Tomorrownot in the wild in this guide's tables — evolve, trade or battle it
Pokémon Black Pearl Emeraldnot in the wild in this guide's tables — evolve, trade or battle it
Pokémon Overcomplicatednot in the wild in this guide's tables — evolve, trade or battle it
Pokémon Emerald Rule-ettenot in the wild in this guide's tables — evolve, trade or battle it

Compare official Gloom with the ROM hacks →

In the 62 guides that include it

Changed in 53 of 62 guides: retyped in 4, stats in 12, abilities in 22, evolution in 42.

Every ROM hack on this site that has Gloom, and what it did to it. Guides that changed something are first. Click one for that version's full page — locations, moveset and TMs.

GuideTypeTotalAbilities
Unbound
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison395Chlorophyll, Stench
Pokémon Too Many Types 2ChangedGrassPoison→StinkyGrassBean395—
Pokémon Soulgold
Evolves into Vileplume — By Using Specific Item (Leaf Stone)
Evolves into Bellossom — By Using Specific Item (Sun Stone)
ChangedGrassPoison395Chlorophyll, Stench
Pokémon Heart & Soul
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison395Chlorophyll, Stench
Infinite Fusion
Evolves into: Vileplume (Leaf Stone), Bellossom (Sun Stone)
ChangedGrassPoison395Chlorophyll, Stench
Pokémon R.O.W.E
Evolves into Vileplume at Level 36 (earlier while holding an Eviolite)
Evolves into Vileplume with a Leaf Stone
ChangedGrassPoison395Chlorophyll, Stench
Celia's Stupid RomhackChangedGrassPoison395Early Bird
+ Early Bird
Sword and Shield Ultimate Plus
Evolves into Vileplume — use a Leaf Stone
Evolves into Bellossom — use a Sun Stone
ChangedGrassPoison395Chlorophyll, Stench
Pokémon Odyssey
Evolves into Vileplume with Leaf Stone
Evolves into Bellossom (Etrian) with Sun Stone
ChangedGrassPoison395Chlorophyll, Own Tempo
+ Own Tempo − Stench
Blaze Black 2 Redux & Volt White 2 ReduxChangedGrassPoison395Chlorophyll, Stench, Stench
Pokémon Phoenix Red
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison→Grass420 +25
+20 HP, -25 Attack, +5 Sp. Atk, +5 Sp. Def, +20 Speed
Chlorophyll, Effect Spore
+ Effect Spore − Stench
Radical Red
Evolves into Bellossom with a Sun Stone
Evolves into Vileplume with a Leaf Stone
ChangedGrassPoison395Chlorophyll, Stench
Elite Redux
Evolves into Vileplume at level 30
Evolves into Bellossom at level 30
ChangedGrassPoison415 +20
+10 Sp. Atk, +10 Sp. Def
Poison Absorb, Chloroplast, Grassy Surge
Pokémon Emerald KaizoChangedGrassPoison395Chlorophyll
− Stench
Pokémon Odyssey II: Heroes of LemuriaChangedGrassPoison→GrassPsychic420 +25
+5 HP, -20 Attack, +5 Defense, +5 Sp. Def, +30 Speed
Chlorophyll, Own Tempo
+ Own Tempo − Stench
Pokémon FireRed & LeafGreen+
Evolves into Vileplume with Leaf Stone
Evolves into Bellossom with Sun Stone
ChangedGrassPoison395Chlorophyll
− Stench
Pokémon Aesthetic Red
Evolves into Vileplume — Use Leaf Stone
Evolves into Bellossom — Use Sun Stone
ChangedGrassPoison395Leaf Guard, Chlorophyll
+ Leaf Guard − Stench
Pokemon Modern EmeraldChangedGrassPoison395Chlorophyll
Pokémon Crystal Inheritance
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison395Chlorophyll, Stench
Pokémon Crippling Medical Debt Edition
Evolves into Vileplume — use Leaf Stone
Evolves into Bellossom — use Sun Stone
Changed0 -395
-60 HP, -65 Attack, -70 Defense, -85 Sp. Atk, -75 Sp. Def, -40 Speed
—
Pokémon Valiant
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison395Chlorophyll, Stench
Pokémon Emerald Imperium
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison395Chlorophyll, Stench
Pokémon Platinum Kaizo
Evolves into Vileplume — Use Item (Leaf Stone)
Evolves into Bellossom — Use Item (Sun Stone)
ChangedGrassPoison395Chlorophyll
− Stench
Pokémon Classic
Evolves into Vileplume with a Leaf Stone
ChangedGrassPoison395Chlorophyll, Stench
Pokémon: Wishes of Tomorrow
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison395Chlorophyll, Stench
Pokémon Exceeded
Evolves into Vileplume with a Leaf Stone
ChangedGrassPoison395Harvest, Anticipation
Pokémon WaveBlue
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison395Chlorophyll, Stench
Pokémon Hoenn's Last Wish
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison→GrassFairy395
-25 Attack, +25 Speed
Chlorophyll, Stench
Low Budget Crystal
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison395Chlorophyll
− Stench
Pokémon Emerald Squared
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison395Chlorophyll, Stench
Pokémon FireRed Reignited & LeafGreen Regrown
Evolves into Vileplume with Leaf Stone
Evolves into Bellossom with Sun Stone
ChangedGrassPoison405 +10
+10 HP
Chlorophyll
− Stench
Pokémon Polished Crystal
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison395Chlorophyll, Stench
Blaze Black 2 & Volt White 2ChangedGrassPoison395Chlorophyll, Stench, Stench
Pokémon SoothingSilver
Evolves into Vileplume — use a Leaf Stone
Evolves into Bellossom — use a Sun Stone
ChangedGrassPoison395Chlorophyll, Effect Spore
+ Effect Spore − Stench
Rising Ruby & Sinking SapphireChangedGrassPoison395Chlorophyll, Stench, Stench
Blaze Black & Volt WhiteChangedGrassPoison395Chlorophyll, Stench, Stench
Fire Red OmegaChangedGrassPoison395Chlorophyll
− Stench
Pokémon FireRed: Rocket Edition
Evolves into Bellossom with a Sun Stone
Evolves into Vileplume with a Leaf Stone
ChangedGrassPoison395
-45 Sp. Atk, +10 Sp. Def, +35 Speed
Chlorophyll, Stench
Pokemon Kanto Expansion Pak
Evolves into Vileplume with a Poison Stone
Evolves into Bellossom with a Leaf Stone
ChangedGrassPoison405 +10
+10 Sp. Def
—
Pokémon Peridot Version
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison395—
HeartGold Generations
Evolves into Vileplume — with Leaf Stone
Evolves into Bellossom — with Sun Stone
ChangedGrassPoison395Chlorophyll, Stench
Pokémon FireRed Deluxe
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison395Chlorophyll
− Stench
Pokémon Platinum ReduxChangedGrassPoison445 +50
+10 HP, -5 Attack, +15 Defense, +5 Sp. Def, +25 Speed
Effect Spore, Poison Point
+ Effect Spore, Poison Point − Chlorophyll, Stench
Pokémon Emerald Blitz
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison395Chlorophyll, Stench
Pokémon Sour Crystal
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison395—
Pokémon Black Pearl Emerald
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison395Chlorophyll, Stench
Pokémon Project Nova
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison400 +5
+5 Defense, -5 Sp. Atk, +5 Speed
Overgrow
+ Overgrow − Chlorophyll, Stench
Pokémon Emerald Rule-ette
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison395Chlorophyll, Stench
Pokémon Mirror Gold
Evolves into Vileplume — with Leaf Stone
Evolves into Bellossom — with Sun Stone
ChangedGrassPoison395Chlorophyll
− Stench
Pokémon Timeless Diamond & Spaceless Pearl
Evolves into Vileplume — Use Leaf Stone
Evolves into Bellossom — Use Sun Stone
ChangedGrassPoison395Chlorophyll
− Stench
Pokémon Crystal Legacy
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison405 +10
+10 HP
—
Pokémon Emerald Seaglass
Evolves into Vileplume with a Leaf Stone
Evolves into Bellossom with a Sun Stone
ChangedGrassPoison395Chlorophyll, Stench
Pokémon Yellow Legacy
Evolves into Vileplume with a Leaf Stone
ChangedGrassPoison415 +10
+10 HP
—
Emerald RogueUnchangedGrassPoison395Chlorophyll, Stench
Pokémon GS ChroniclesUnchangedGrassPoison395Chlorophyll, Stench
Inclement EmeraldUnchangedGrassPoison395Chlorophyll, Stench
Renegade PlatinumUnchangedGrassPoison395Chlorophyll, Stench
Pokémon Emerald ExUnchangedGrassPoison395—
GaiaUnchangedGrassPoison395Chlorophyll, Stench
Sacred Gold & Storm SilverUnchangedGrassPoison395Chlorophyll, Stench
Pokémon Definitive PlatinumUnchangedGrassPoison395Chlorophyll, Stench
Pokémon OvercomplicatedUnchangedGrassPoison395Tangled Feet, Insomnia

Pokédex entries

What each game says about it, in the games' own words.

Red / BlueThe fluid that oozes from its mouth isn't drool. It is a nectar that is used to attract prey.
YellowSmells incredibly foul! However, around 1 out of 1,000 people enjoy sniffing its nose- bending stink.
Gold / HeartGoldWhat appears to be drool is actually sweet honey. It is very sticky and clings stubbornly if touched.
Silver / SoulSilverIt secretes a sticky, drool-like honey. Although sweet, it smells too repulsive to get very close.
CrystalThe smell from its drool-like syrup and the pollen on its petals is so bad, it may make opponents faint.
RubyGLOOM releases a foul fragrance from the pistil of its flower. When faced with danger, the stench worsens. If this POKéMON is feeling calm and secure, it does not release its usual stinky aroma.
SapphireFrom its mouth GLOOM drips honey that smells absolutely horrible. Apparently, it loves the horrid stench. It sniffs the noxious fumes and then drools even more of its honey.
EmeraldA horribly noxious honey drools from its mouth. One whiff of the honey can result in memory loss. Some fans are said to enjoy this overwhelming stink, however.
FireRedIts pistils exude an incredibly foul odor. The horrid stench can cause fainting at a distance of 1.25 miles.
LeafGreenThe fluid that oozes from its mouth isn’t drool. It is a nectar that is used to attract prey.
Diamond / Pearl / Platinum / Black / White / Black 2 / White 2 / YThe honey it drools from its mouth smells so atrocious, it can curl noses more than a mile away.
XSmells incredibly foul! However, around one out of a thousand people enjoy sniffing its nose-bending stink.
Omega RubyGloom releases a foul fragrance from the pistil of its flower. When faced with danger, the stench worsens. If this Pokémon is feeling calm and secure, it does not release its usual stinky aroma.
Alpha SapphireFrom its mouth Gloom drips honey that smells absolutely horrible. Apparently, it loves the horrid stench. It sniffs the noxious fumes and then drools even more of its honey.

Names in other languages

Japaneseクサイハナ
Japanese (Rōmaji)Kusaihana
GermanDuflor
FrenchOrtide
SpanishGloom
ItalianGloom
Korean냄새꼬
Chinese (Simplified)臭臭花
Chinese (Traditional)臭臭花

Official data here is present-day reference data from PokéAPI, not a snapshot of any one game's era — the Fairy type and hidden abilities arrived partway through the series, so a difference against an older game can belong to the series rather than to that ROM hack.