Make bullet fly to shoot zombies! Challenge of the zombies is a physics-based shooting game where you fire super-bouncy bullets to eliminate all the zombies in each level. The goal is simple, all you have to do is kill the zombies with the least amount of bullets. You must aim carefully and make each bullet count zombies, shooter game, bullet physics, shooting game, HTML5 game, 2D game, action game, physics game, online game, mobile game, zombie shooter, kill zombies, strategic shooting, precise aiming, mouse control, free game, web game