Get the Poké Flute from Mr. Fuji in Lavender Town
Go to the sleeping Snorlax on Route 12 or Route 16
Stand in front of Snorlax
Use the Poké Flute
Battle Snorlax after it wakes up
Catch it or defeat it to clear the path
Get the Poké Flute from Mr. Fuji in Lavender Town
Go to the sleeping Snorlax on Route 12 or Route 16
Stand in front of Snorlax
Use the Poké Flute
Battle Snorlax after it wakes up
Catch it or defeat it to clear the path