so I got a new cheap ps3 knockoff gamepad and i can't set it up. Out of 4 controls I can only set up 2 of them, all of my buttons act like copies of the same 2 buttons. The game worked fine before with my other crappy gamepad but when i tried using that again I got the same problem, now rayman can only jump and punch whatever button I press. Can anyone please help?

Try using JoyToKey to set up your gamepad buttons to copy the equivalent keyboard buttons and set up the game to use keyboard only, that should help if the in-game configuration does not work. Edit: Ah sorry, just noticed how old the thread was, well hope this is of use to anyone else encountering gamepad setup issues!

Edit 2: Rayman 2 has an input fix by another esteemed member of the GoG community: http://www.gog.com/en/forum/rayman_series/rayman_2_input_fix_now_available