click the green flag more than once and chose the amount of players. was to control player 1 (blue) s to shoot arrow keys to control player 2 (pink) down arrow to shoot if you have 0 health, you become sick and if you dont get a health kit in around 15 seconds, you will die. health kits give you 3 more lives. if all players die or the zombies reach the gem, you lose. if you kill 50 zombies, you win!
the square behind the sprite is just a little mistake :> some zombies take more than one bullet to die. shooting also has a cooldown. (sometimes the zombie bomb just appears out nowhere) if you see a glitch, please tell me in the comments! enjoy :D