Guess I don't really understand how to play. I apparently have a rifle, although it doesn't seem to do anything. The little blue orbs that circled around me killed enemies when they collided (although sometimes enemies would die even without a collision). Most of the platforms are too high to jump on, so it doesn't look like I can move very far. At one point, I pressed down while on the ground, and I was immediately teleported to top of the level.