just finish the elite four and travel to the islands 1 to 7 and do what you need to do there.Then go to the cerulen cave to see if the boy standing infront of it had step aside.If he is not,then you had not do what is needed in the islands. If not,you just have to go in and find mewtwo.Remember to buy many ultra balls and if you have a master ball,you can just bring it and you don't need to buy any ultra balls.
No
no
All starters, including Bulbasaur, can't be caught in Pokemon LeafGreen.
doggy biscit
Catch zubat but that's it.
Yes,its level is 70.
you need to fix that professors machine on the sevii islands (the seven islands) the ones that you unlock after the league
back of cerulean cave
Cerulean Cave.
you can still go to cerulean cave to catch it like in firered and leafgreen
cant you have to either trade from pokemon leafgreen or fire red
the best Pokemon are mewto and the rarest Pokemon ever mew.
No. It's a cheat. Mewto, yes.
no
You cannot see it in the wild in Pokemon Diamond; you have to transfer it from FireRed/LeafGreen.
That's impossible.
You can not catch it in leafgreen,but in firered you can.