Part 1: Just started — no badges

Just started — no badges opens 7 areas. There are 10 trainers standing in them. The fights at this checkpoint are Rival Blue (Bulbasaur), Rival Blue (Squirtle), Rival Blue (Charmander).

Where to go

1. Route 1

   Wild: Pidgey 70% · Lv 2-7, Rattata 30% · Lv 2-4

2. Route 2

   Wild: Pidgey 35% · Lv 3-7, Rattata 35% · Lv 3-4, Nidoran♀ 15% · Lv 4-6, Nidoran♂ 15% · Lv 4-6 +1 more

3. Route 22

   Wild: Magikarp 100% · Lv 5, Poliwag 90% · Lv 5-15, Goldeen 50% · Lv 10, Nidoran♀ 30% · Lv 2-4 +5 more

   Trainers: ★ Rival Blue (Bulbasaur) Lv 53, ★ Rival Blue (Charmander) Lv 53, ★ Rival Blue (Squirtle) Lv 53

4. Viridian Forest

   Wild: Caterpie 50% · Lv 3-6, Metapod 25% · Lv 4-6, Pidgey 24% · Lv 4-8, Pidgeotto 1% · Lv 9

   Trainers: Bug Catcher Lv 7, Bug Catcher #2 Lv 6, Bug Catcher #3 Lv 10, Bug Catcher #4 Lv 8, Lass Lv 6

5. Pallet Town

   Wild: Magikarp 100% · Lv 5, Staryu 60% · Lv 5-10, Goldeen 50% · Lv 10, Poliwag 50% · Lv 10 +2 more

6. Viridian City

   Wild: Magikarp 100% · Lv 5, Poliwag 100% · Lv 5-15, Goldeen 50% · Lv 10

   Pick up: TM27 Fissure

7. Oak's Lab

   Trainers: ★ Rival Blue (Bulbasaur) Lv 9, ★ Rival Blue (Squirtle) Lv 5

★ Rival Blue (Bulbasaur) — Oak's Lab

2 Pokémon · level cap Lv 9 (every cap) · Rival Blue (Bulbasaur)’s own page

	Pokémon	Ability & item	Moves	Base stats
	Spearow Lv 9 NormalFlying		Peck Growl Leer	HP40Attack60Defense30Sp. Atk31Sp. Def31Speed70Total262
	Eevee Lv 8 Normal		Tackle Tail Whip Sand Attack	HP55Attack55Defense50Sp. Atk45Sp. Def65Speed55Total325

★ Rival Blue (Squirtle) — Oak's Lab

1 Pokémon · level cap Lv 5 (every cap) · Rival Blue (Squirtle)’s own page

	Pokémon	Ability & item	Moves	Base stats
	Eevee Lv 5 Normal		Tackle Tail Whip	HP55Attack55Defense50Sp. Atk45Sp. Def65Speed55Total325

★ Rival Blue (Charmander) — Route 22

6 Pokémon · level cap Lv 53 (every cap) · Rival Blue (Charmander)’s own page

	Pokémon	Ability & item	Moves	Base stats
	Sandslash Lv 47 Ground		Slash Poison Sting Swift Fury Swipes	HP75Attack100Defense110Sp. Atk45Sp. Def55Speed65Total450
	Exeggcute Lv 45 GrassPsychic		Leech Seed Stun Spore Poison Powder Solar Beam	HP60Attack40Defense80Sp. Atk60Sp. Def45Speed40Total325
	Cloyster Lv 45 WaterIce		Withdraw Supersonic Clamp Aurora Beam	HP50Attack95Defense180Sp. Atk85Sp. Def45Speed70Total525
	Magneton Lv 47 ElectricSteel		Thunder Shock Supersonic Thunder Wave Swift	HP50Attack60Defense95Sp. Atk120Sp. Def70Speed70Total465
	Kadabra Lv 50 Psychic		Psybeam Recover Psychic Reflect	HP40Attack35Defense30Sp. Atk120Sp. Def70Speed105Total400
	Flareon Lv 53 Fire		Fire Spin Smog Leer Flamethrower	HP65Attack130Defense60Sp. Atk95Sp. Def110Speed65Total525

Everything you can have caught by this checkpoint · Open the interactive guide

This game's documentation doesn't say where 4 of its 343 fights happen, so those trainers are on no part of this walkthrough; they are all on the Trainers page. It also doesn't say when Kanto Underground Path opens up, so it is in no part above; it has its own route page.