I enjoyed the music and I think the idea is interesting, but I still got very confused with the UI (also was broken on my screen, you forgot to scale it with resolution I think) and time rewind feature (I think the ticks are either programmed wrong or I just don't understand the mechanics). The graphics are fine, but some sprites stand out a bit while others drown in the background. Still managed to beat it in 9 ticks (which feels weirdly low) and I think this could be something even cooler if you added more levels and some story, or a randomly generated endless mode possibly. Good job anyway!