XRally is a Linux clone of the classic Rally X arcade game.
For those who don't know, in Rally X you control a blue
(good) car, that has to collect yellow flags around a
maze-like map, while avoiding the red (bad) cars. In order
to help himself, the blue car can use clouds of smoke through
the maze. If a enemy touch any of these clouds, it stops
for a while. The enemy cars can also crash one with the
other, what gives you some extra time.