Thanks a lot for the nice comments :) I am happy that you enjoyed it :) I am working on having a music soon in the game :) (as I am not a musician (I don't understand anything about Music Theory) but I have someone working on that) Thanks again :)
I went on a walk today, and thought about the music more. I feel that, since your lasers and enemies have patterns, they can have sound effects (such as when they touch the floor or ceiling) that acts as music without having to actually compose music. I think the way you have built your world, it can lend itself to being musical/rhythmic without changing much at all. That's just an observation.