The Last Sorceror

You stand in the middle of a vast open space. Hordes of ugly, violent creatures swarm towards you. You're in luck. This isn't the rush hour on the London Underground, it's Gauntlet-like game "The Last Sorceror". A lot more fun - you can't blast commuters to smithereens with nothing but your own willpower, however much you try. Your objective in TLS is simple. Stop the demons by destroying their entry points into each world.