How do you catch mew two in Pokemon LeafGreen fire red?

Answer 1

Go to cearulean cave, first of all. If you don't know how to get to cearulean cave, then look that up. MAKE SURE you have your master ball, or about 20 ultra balls.So once you go in, use surf and go all the way to the other end then go south. Once your there, go east, then north, then west, then go down the stairs and up the other set of stairs then the ladder. Once your there, pretty much go south, then north, then west and you'll find a ladder to go down. Then once your THERE, then go west then south until you find the bigger pond. Use the HM surf and you will find a small island with Mewtwo between 2 rocks!! Go up to him and press A then you will be in battle. This is where I would use a master ball, but if you want to save it then do this.

Beat him up ALOT until he's almost dead, but not quite. Then keep using your ultra balls until you finally catch him. Some good things to do is paralyze him, or put him to sleep. It's pretty much a 5% chance that you will catch him with a normal Pokeball.

Good luck! And let me tell you, you'll feel awesome after you catch the strongest Pokemon in the whole game!