Thanks a lot!
It was originally created by Joris Sanchez, a student in Game Art at my school, and I joined the project during the end of the last year of our studies, and it became our end of degree group project.
Normally an Xbox Controller works, if it doesn't, try unplugging and reconnecting it once you're in game (after the menu).
I wasn't the main programmer for the game, so I don't know exactly why the controller doesn't work..
But anyhow, thanks for playing our game and for the compliments!