in sky you have to go in spinda cafe and wait until mewtwos challenge arrives
You Cant Unless You Got A Special Wi-Fi Mission
in firered and leafgreen it's in cerulean cave but for mystery dungeon red and blue i think it's called cryptic cave. you get it when you recruit mewtwo.
first manaphy has to tell you about the marine resort. second you must have a secret slab or a mystery part in you bag you do not have to use or hold them then go to dark crater b6f and keep fighting him until you recruit him
are you asking what is a recruit for Pokemon mystery dungeon? it's a Pokemon you can have on your team with you.
Sky tower
your mom and you
Cryptic Cave is Mewtwo's Friend Area.
You can recruit it at Palkia's dungeon ( after azurill's nightmare)
he's in western cave
no srry
no
you recruit him by going to electric plateau