SPIT. PURIFY. SURVIVE.
Use your spit to purify zombies from the rooftop! If you miss, zombies will hunt you down. Speed and aim are your only weapons against zombies!
MISSION: Hit zombies to purify zombies instantly.
WARNING: Once the zombie's countdown hits zero, they'll climb up to hunt you down!
ULTIMATUM: Wipe out zombies before the time runs out!
UPGRADE: Use points from defeated zombies to upgrade your spit!
UNLOCK: You must reach the target score to unlock the next map.
SURVIVE: You only have one life. If you die, you lose everything and start over!