Oooh! There is a legendary Pokemon residing within... It has been told about only in myths.... This is a psychic Pokemon that you'll probably need the masterball to catch.
It is MEWTWO!!!!
inside cerulean cave near cerulean city.
Inside the Cerulean Cave. HMs Required: Surf
You can nly get inside it after beating the game and inside it at the end you can catch Mewtwo.
you have to beat the elite four. and, you have to rescue Lorelei on four island. And inside the cave lies... MEWTWO!
Cerulean Cave
Cerulean Cave
No
in firered and leafgreen, after u beat the elite four, go to cerulean cave. mewtwo is inside.
Cerulean cave located near cerulean city.
mewtwo is in cerulean cave
Cerulean cave
It is in Cerulean Cave. It is on the bottom floor of the cave! :P