cool game! it's a unique idea, I haven't seen something like it before. My feedback would be to have the ship speed up to the next set of boxes once you get the right equation, make the whole row of boxes break when you answer it right (I died just cause I wasn't lined up perfectly with the gap), and make to movement smooth in and out so it's not so jittery. Last thing, the music track ends around 6/10, and it's just quiet with the explosions and laser sounds.