Press 1 to add health, 2 for the ammo.
Undead Swarm hacked unblocked is a free online game for kids to play at school and home. You are placed and trapped in an infested city, which is filled with hordes of zombies. Your task is to find the best way to defend and save yourself before you receive any help from the reinforcement. Grab the weapon that the Undead Swarm Action gives you to attack and remove every enemy in the fastest time for survival. The headshots will help you earn much more money and kill the target quicker. Good luck!