I actually use a Keyboard to play JJ2..used to play JJ2 with a Gravis Gamepad Pro(I think that's what it was called. =P) gamepad on a 98., but now that game pad refuses to work on my XP comp, although I still prefer using the keyboard for some reason, but I find controlling jj2 easier using z for jump and x for shoot and c for run and enter for change weapons.