Rock Tunnel Pokémon Yellow · Dungeon

Wild Pokémon

1F

Walking in the cave encounter rate 15/255 per step

Pokémon	Type	Lv.	Chance
Zubat	PoisonFlying	15–21	50%
Geodude	RockGround	16–20	39.5%
Machop	Fighting	17–21	10.5%

B1F

Walking in the cave encounter rate 15/255 per step

Pokémon	Type	Lv.	Chance
Zubat	PoisonFlying	20–22	39.5%
Geodude	RockGround	17–21	29.7%
Machop	Fighting	18–20	20.3%
Onix	RockGround	14–22	10.5%

Grass, cave and surfing chances are the Generation I encounter slots (10 slots weighted 51, 51, 39, 25, 25, 25, 13, 13, 11 and 3 out of 256); the Super Rod picks from four slots weighted 102, 76, 51 and 27, the Good Rod is 50/50 and the Old Rod always hooks a level 5 Magikarp. Where to find every Pokémon.

Trainers

Trainer	Pokémon	Prize	Where
Hiker	Geodude 19Machop 19Geodude 19Geodude 19	₽665	1F
Hiker	Onix 20Onix 20Geodude 20	₽700	1F
Hiker	Geodude 21Graveler 21	₽735	1F
PokéManiac	Cubone 23Slowpoke 23	₽1,150	1F
Jr. Trainer♀	Bellsprout 22Clefairy 22	₽440	1F
Jr. Trainer♀	Meowth 20Oddish 20Pidgey 20	₽400	1F
Jr. Trainer♀	Pidgey 19Rattata 19Rattata 19Bellsprout 19	₽380	1F
Jr. Trainer♀	Jigglypuff 21Pidgey 21Meowth 21	₽420	B1F
Hiker	Geodude 21Geodude 21Graveler 21	₽735	B1F
PokéManiac	Slowpoke 20Slowpoke 20Slowpoke 20	₽1,000	B1F
PokéManiac	Charmander 22Cubone 22	₽1,100	B1F
Hiker	Geodude 25	₽875	B1F
Jr. Trainer♀	Oddish 22Bulbasaur 22	₽440	B1F
Hiker	Machop 20Onix 20	₽700	B1F
PokéManiac	Slowpoke 25	₽1,250	B1F

Prize money is the trainer class’s base amount times the level of their last Pokémon.

Items

No items to pick up here.

Tips

• Flash lights up the screen and makes the maze far easier; get HM05 from Professor Oak's aide on Route 2 once you have caught enough species.
• Rock Tunnel contains no items in Yellow, so the aim is simply to cross it and train.
• Machop, Geodude and Onix live here, so Water and Grass attackers help a lot.
• Use Repel or carry Potions, because the trainers are tightly packed and hit hard.
• You emerge near Lavender Town, where you can heal at the Pokémon Center.

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