I got a score of 80979 first try (:
Anyway, this is probably the most fun submission I've played gameplay wise. I love how it ramped up and the music choice is great. Although some of the boxes do look quite similar, I kind of like the aspect of really focusing and using your eyes to find the right one. The firework box turning into a broken one is great as a mechanic as well.
A minor criticism, but I didnt really feel like I ever needed to use the 'stop movement' key as the player already decelerates quite quickly. I also noticed that sometimes a lot of the boxes would just be clumped near the ceiling of the map.