Shootup io is a game of zombie shooting. You've ended up trapped in a strange town. It's bad luck that it's infected by zombies. You have just one option... SHOOT EM ALL!
You must defeat the waves of zombies following you. The more zombies you kill, the larger and more powerful they will get. Make the proper upgrade choices to keep them guessing!
Boss zombies can occasionally be found in the zombie waves. They are afraid of spikes and will not allow you to use all of your ammunition on them. These creatures can be defeated with a basic pistol and a little patience.
PLAY WITH YOUR FRIENDS
You may form a team with your friends by sharing the link on the "Team with your friends" button. You can't injure them that way.