Zombies Want My Brains, but Im a Robot

This game was made for the ludum dare 44, but wasnt submitted on time due to an error on the website. "Zombies Want My Brains, but Im a Robot" is an arcade platformer game. Try and kill as many zombies as possible, but zombies will try and take your power. When you run out of power, you lose the game. Power is used to shoot your gun, to upgrade your damage, and to upgrade the amount of power given by power orbs. Power orbs are the only way to gain back power and are spawned randomly around the map.