Great game! I really liked the graphics and all of the little bits of polish added up for a well-tuned experience (eg the trail, the little elevator animations, the scene-transition etc...) Also, the music worked really well! Sometimes when you were firing backwards you couldn't see your bullet because it blended in with the trail, so maybe just a slightly different colour for the bullet might have been nice: that's a really minor thing though... like really minor in such a good game! Overall, I really enjoyed playing!