Press space (or tap on mobile) to shoot in that direction. It will stop if you die. Also, feel free to remix! Just by changing the sprite costumes, this can easily be turned into a totally different game!
Credit to @-NanoCode- for the wobbling play button script. This is an old project. I have newer and better games. v1.0 - Released! v1.1 - Changed zombie dynamics. They go slower, but more spawn. Also slightly changed bullet speed. v1.1.1 - Now mobile friendly. v1.1.2 - Added Cloud Highscore and wobbly play button. v1.1.3 - Added thumbnail. Also changed bullet to a rectangle. v1.2.0 - Removed thumbnail. Added stamped score. v1.2.1 - You can now press space to shoot, too. No longer allowed to reply to comments or post them... feel free to leave feedback still. I will read it.