I like the concept of controlling the bullet, and the atari-like graphics and sounds. But control needs to be a bit smoother for it to stand its own. Maybe difficulty levels controlling how fast the bullet travels? Or the ability to accelerate or brake the bullet in challenging sections? There's a lot of room for growth here. Great job!

Cool inversion! found the bullet a little difficult to control but I think that's at least partially intentional, was not expecting a star rating system! or a level select, really neat lil touches. I do find the idea of a bullet needing to pick up keys to unlock doors pretty comical as well, great job getting this in on time!