Thundurus

ElectricFlyingPrankster, Defiant (hidden)

Level-up moves 20

Lv	Move	Type	Cat	Pow	Acc	PP
1	Astonish Attack that may shock the foe into flinching.	Ghost	Phys	30	100	15
1	Hammer Arm A swinging fist attack that also lowers Speed.	Fighting	Phys	100	90	10
1	Nasty Plot Thinks bad thoughts to sharply boost Sp. Atk.	Dark	Stat	—	—	20
1	Swagger Confuses the foe, but also sharply raises its Attack.	Normal	Stat	—	85	15
1	Thrash A rampage of 2 to 3 turns that confuses the user.	Normal	Phys	120	100	10
1	Thunder Shock An electrical attack that may paralyze the foe.	Electric	Spec	40	100	30
1	Uproar Causes an uproar for 3 turns and prevents sleep.	Normal	Spec	90	100	10
7	Bite Bites with vicious fangs. May cause flinching.	B_UPDATED_MOVE_TYPES >= GEN_2 ? TYPE_DARK : TYPE_NORMAL	Phys	60	100	25
13	Revenge	Fighting	Phys	60	100	10
19	Shock Wave A fast and unavoidable electric attack.	Electric	Spec	60	—	20
25	Heal Block Prevents the foes from recovering HP for 5 turns.	Psychic	Stat	—	100	15
31	Agility Relaxes the body to sharply boost Speed.	Psychic	Stat	—	—	30
37	Discharge Zaps all other Pokémon with electricity. May paralyze.	Electric	Spec	80	100	15
43	Crunch Crunches with sharp fangs. May lower Defense.	Dark	Phys	80	100	15
49	Charge Charges power to boost the Electric move used next.	Electric	Stat	—	—	20
55	Nasty Plot Thinks bad thoughts to sharply boost Sp. Atk.	Dark	Stat	—	—	20
61	Thunder A lightning attack that may cause paralysis.	Electric	Spec	110	70	10
67	Dark Pulse Attacks with a horrible aura. May cause flinching.	Dark	Spec	80	100	15
73	Hammer Arm A swinging fist attack that also lowers Speed.	Fighting	Phys	100	90	10
79	Thrash A rampage of 2 to 3 turns that confuses the user.	Normal	Phys	120	100	10

* a legal move, just moved to level-up · ** new to this game

TMs & HMs 43

#	Move · where to get it	Type	Pow
TM06	Toxic Route 17	Poison	—
TM08	Bulk Up Route 17	Fighting	—
TM10	Hidden Power Lake of Rage	Normal	60
TM11	Sunny Day Goldenrod City	Fire	—
TM12	Taunt Burned Tower	Dark	—
TM15	Hyper Beam Goldenrod City	Normal	150
TM17	Protect Goldenrod City	Normal	—
TM18	Rain Dance Slowpoke Well	Water	—
TM21	Frustration Celadon City	Normal	1
TM23	Iron Tail Olivine City Gym	Steel	100
TM24	Thunderbolt Goldenrod City	Electric	90
TM25	Thunder Goldenrod City	Electric	110
TM27	Return Goldenrod City	Normal	1
TM29	Psychic Saffron City	Psychic	90
TM31	Brick Break Route 17	Fighting	75
TM32	Double Team Not placed on any map in the source — the game doesn't say where this one comes from	Normal	—
TM34	Shock Wave Vermilion City Gym	Electric	60
TM36	Sludge Bomb Route 43	Poison	90
TM41	Torment Route 8	Dark	—
TM42	Facade Route 15	Normal	70
TM43	Secret Power Lake of Rage	Normal	70
TM44	Rest Goldenrod City	Psychic	—
TM45	Attract Goldenrod City Gym	Normal	—
TM46	Thief Rocket Hideout	Dark	60
TM52	Focus Blast Goldenrod City	Fighting	120
TM56	Fling Rock Tunnel	Dark	1
TM57	Charge Beam Olivine City	Electric	50
TM58	Endure Celadon City	Normal	—
TM63	Embargo Route 34	Dark	—
TM66	Payback Route 35	Dark	50
TM68	Giga Impact Celadon City	Normal	150
TM73	Thunder Wave Route 14	Electric	—
TM79	Dark Pulse Celadon City	Dark	80
TM82	Sleep Talk Celadon City	Normal	—
TM83	Natural Gift Goldenrod City	Normal	1
TM86	Grass Knot Route 11	Grass	1
TM87	Swagger Olivine Lighthouse	Normal	—
TM89	U-turn Azalea Town Gym	Bug	70
TM90	Substitute Goldenrod City	Normal	—
TM91	Flash Cannon Route 9	Steel	80
HM02	Fly Cianwood City	Flying	90
HM04	Strength Olivine City	Normal	80
HM06	Rock Smash Route 36	Fighting	40

Where to find Thundurus

Not found in the wild — evolve or trade for it.

Other changes in this game

Move tutors: Endure, Sleep Talk, Substitute, Swagger, Thunder Wave, Acrobatics, Body Slam, Brutal Swing, Confide, Mimic, Round, Sky Drop, Sludge Wave, Smack Down, Smart Strike, Snarl, Snore, Thunder Punch, Volt Switch, Wild Charge