You'll need to trade for it.
Mew, mewtwo because two of them is extremely rare
no it isn't
no
U can't in heart gold but u can catch mewtwo
You catch Mewtwo in the Cerulean Cave. The cave is very long and puzzling and will require much searching to find him. Mewtwo is located in the very end of the maze.
ho-oh,Lugia,Mewtwo,Entei ,sicune and raikou
Use gameshark codes.
You can find Mewtwo in the Cerulean Cave.
To get mewtwo in Pokemon heart gold, you must get all the Kanto gym badges. Then you go to Cerulean city's cave. Get far and you'll find mewtwo.
You can find Mewtwo in the back of Cerulean Cave.
you cant catch mewtwo in Pokemon platinum peral diamond you can in Pokemon heart gold and solsilver in canalave cave