If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Grab pills, ammo, and explosive boxes. Shoot crazy people and mad dogs to stay alive in this 3D game.
Arrow keys / W,A,S,D - To move.
Shift key - To run.
Space bar - To fire.
Numbers 1-3 - To change weapon.
Number 4 - To use pills.
E - To pick up items/enter on doors.