W,A,S,D to move Arrow keys to turn [aim] Space to fire number keys to switch weapons [1-6] Unlock new weapons to your arsenal and new enemies as you score points.
NOTE: "safe zone" does not ensure safety from zombies, they just don't spawn there. UPDATE 1.1: added boss fight UPDATE 1.2: added new sounds, changed the map, and fixed boss spawn bug UPDATE 1.3: powerup system [unlockable at 400 points]
