Bunnies and Zombies
The zombies occupied the entire world and you are the last one left to protect people. Defend the last child of innocence; you must eliminate all the zombies. Don't let the zombies close or reach the barricade, so aim their heads and shoot them all. Shoot the incoming zombies as you raise and lower your shots to zombie head level.
WASD to move. Mouse to aim and shoot. R to reload.