Defend yourself along side other players against hordes of invading monsters. A highly configurable Unreal Tournament 3 Invasion mutator made by RoseBum ThinkTank
Two monsters, the ScarySkull and ScarySkullGhost.
I suppose you can guess which is which, the Ghost is the one with the funky black/white effect around it, and the regular ScarySkull is on fire.
The Ghost is way faster than the regular ScarySkull.