Your mission in this bloody shooting flash game is to kill as many zombies as you can. Use "A" KEY to move left and "D" KEY to move right. Press "W" KEY to jump. Use YOUR MOUSE to aim and shoot. Change weapons by pressing 1-4 KEYS. Press SPACEBAR to enter shop and upgrade your equipment. Kill 2 or more zombies before touching the ground to get air-kill combo. Remember, you can jump on tom of zombies. Combos are tricky, but you'll get the hang of it. Good luck!