The usage of the theme is okay. I guess that it works.
I liked the graphics and especially the transitions. It's really nice that you got time to add them.
It's also cool that you had multiple tracks instead of just one. The looping of those tracks is a bit weird. Not sure whether that's because of the engine or the music making software.
The game itself is really difficult. You basically don't get any time to react. I wasn't able to finish the game unfortunately. Also sometimes after switching lanes I used the mirror and the projectiles didn't get reflected, even though it looked alright. You really needed to have fast reflexes to do it.
Good job