Thanks for all the feedback! There should be BGM btw, not sure why you couldn't hear it. I've learned to think about colours a lot more for next time! As for the wave not ending that seems to be a common issue. Most of the time they can be found stuck behind a table, but occasionally they seem to all be gone. I've finished the game multiple times since uploading and I can usually make it to the boss in wave 5, so it sucks so many people have had this issue. All I can suggest is restart, and chances are it should work all the way through. Thank you!