As far as I'm aware the only enemy which actually spawns is the regular cubes, there is no increase in difficulty or a scoring system so it basically just goes on forever with no changes, also you used the music from 

without crediting. Please credit. All this said, the mechanics that were included felt polished and the concept was fun to play around with, also visuals were quite appealing.

By the way how does this link to the jam's theme?