Rock Tunnel is a passageway in the Kanto Region from Cerulean City to Lavender Town. In the Generation I games, it is the only way to progress at the time required to take it, due to a sleeping Snorlax on Route 12. Because of the dark, a Pokémon who can learn Flash is recommended to go through Rock Tunnel. The only way to learn Flash is by receiving an HM05 from Prof. Oak's Aide near Diglett's cave.
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| Kanto | |
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Cites Viridian City · Pewter City · Cerulean City · Vermilion City · Celadon City · Fuchsia City · Saffron City Towns Pallet Town · Lavender Town | |
Pokémon League Indigo Plateau | |
Caves, Tunnels & Mountains Diglett's Cave · Mt. Moon · Cerulean Cave · Rock Tunnel · Victory Road · Tohjo Falls GS/C/HGSS | |
Place of Interest Viridian Forest · Power Plant · Pokémon Tower · Rocket Hideout · Pal Park · Silph Co. · Pokémon Mansion · Safari Zone RB/Y/FRLG · S.S. Anne RB/Y/FRLG · S.S. Aqua GS/C/HGSS | |
| Kanto (Sevii Islands) · Johto · Hoenn · Sinnoh (Battle Zone) · Unova · Kalos · Alola |
