Somethings aren't as readable, probably due to the CRT filter. I think the music was auto generated with WolframTones, which isn't that good. With the time frame it makes sense to use it if you ave little experience, but overall it's not the best I highly recommend you learn more about how to make simple music, since having a basic pad can do a lot to add to a scene without knowing much about music.
The game itself is fun with all of the new mechanics. I would recommend that it's a great base with a lot of content, but fully replace the music and refine some of the graphics more and you have something really great.