By beating the elite 4
beat the elite four rematch
You can find Mewtwo in the back of Cerulean Cave.
GeT mew
The Cerulean Cave is in Cerulean City. You have to surf from a place around Cerulean Cape down to the Cerulean Cave. The Cerulean Cape is north of Cerulean City across the bridge.Go to the north end of the nugget bridge then left down the grass and follow the mountain to it. Btw you'll need flash and you can find Mewtwo in it.
no mewtwo is in cerulean cave and articuno is in seafoam island
You can find golduck inside cerulean cave in the water.
Yes, you can get Mewtwo deep inside cerulean cave near cerulean city.
Deep inside Cerulean Cave after you get all 16 Badges or after beating Red.
The cerulean cave is behind that man that says u need all badges to get through. It is in cerulean city
Cerulean Cave
Beat the elite four.
You can find Mewtwo in the back of Cerulean Cave.
To get into Cerulean Cave you have to get all 16 badges in Kanto & Johto, beat Red in mt Silver, then talk to Prof. Oak
You can access Cerulean Cave in SoulSilver after you get all 16 gym badges (Johto and Kanto).
yes you can,in cerulean cave
GeT mew
mewtwo
it is in cerulean cave