Snorlax

Snorlax is one of the types of fictional Pokémon species. They first appeared in Pokémon Red Version, Pokémon Blue Version, and Pokémon Green Version (Japan only). These Pokémon are large species that tend to sleep alot, often in areas where the player needs to get throughl. To wake up the large Pokémon, the player must used either a Poké Flute or PokéGear.

Appearances
In Red, Blue, and Green (as well as it's GBA remakes), you'll find a Snorlax blocking your way to both Route 12 and Route 16. The only way to wake him up is to play the Poké Flute, which Mr. Fuji will give to you once you save him from the Pokémon Tower.