u can also tell a Pokemon to learn thief this way u don't need to catch paras thief will get it for u.
but be warned paras Pokemon body will poison ur Pokemon and thief oni have 10 pp
you can get mushrooms if you go to mt moon and use the item finder in the lower levels near rocks
go to Pokemon tower on the 6th floor use the itemfinder
Nope as long as you have big mushrooms or tiny mushrooms you can have the move tutor teach Pokemon moves forever.
Catch a bunch of Paras. They always hold tiny mushrooms. And Parasect also holds a tiny mushroom.
A lot
No, but they do carry them. If you want lots, catch as many of them as possbile, then release them.
A mere Cameo appearance from Firered and Leafgreen. They do no good, so you may as well sell them.
They can be given to the Move Relearner to teach a Pokemon a Move it's already learned in FireRed and LeafGreen, but serves no purpose other than to be sold in Diamond and Pearl.
Lot a thum in Cerulean Cave.
Yes you can trade leafgreen version Pokemon to another leafgreen version.
You have to catch Paras and Parasects because they carry big and tiny mushrooms
put it first then fight