By legendary wise then the legendary birds if you have not caught them yet, raikou/suicune/entei NOTE: for the legendary dogs AKA Raikou, suicune and entei it depends on which starter Pokemon you chose so if you chose bulbusaur you get entei, charmander gets you suicune and squirtle gets you raikou. NEED NATIONAL DEX.
Congrats, you're done with the game. There's really no story after Mewtwo.
You can find Mewtwo in the Cerulean Cave.
70
trade from firered
No.
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
trade from firered or leafgreen.
no, firered or leafgreen
cerulian cave
Lv70
Cerulean Cave
Mewtwo doesn't learn Psybeam.