I downloaded AlienArena2007: http://users.adelphia.net/.
Everything is ok, except the mouse.
For a very short time the mouse behaves exactly is it should. But then it is totally inverted. Left is right, right is left, up is down, down is up. Or when inverted mouse is set: up is up and down is down, although it should be the other way round.
Btw, I'm running arch64. I have a Laptop with an USB mouse.