you have to beat the league national dex ruby sapphire (not the game ruby sapphire) then go to to ceraluen city then the guy in the cave guy is gone
After you catch mewtwo you go and beat the Pokemon league again to go and catch the legendary dogs!!!!!!!!!!
go to the cerulean cave and catch mewtwo
1. you cant catch mewtwo on ruby emerald or saphire<spelling mistake> you can migrate the mewtwo you catch on leafgreen or firered to migrate to platinum
Lv70
Congrats, you're done with the game. There's really no story after Mewtwo.
well, i have no clue how o catch mew but to catch mewtwo in leafgreen or firered all u have to do is have the national dex and beat he elite four (which is the funnest part in the game mewtwo is a HUGE powerhouse) just go to the cave in cerulean city and go through the cave and catch him.
mewtwo is in cerulean cave. the cave in in cerulean city, where misty's gym is. mewtwo in hard to catch, though.
you find it deap in cerluean cave
No trade one from firered or leafgreen.
With a master ball.
explore around and catch mewtwo.
you can catch mewtwo at cerulean cave