Super cool spritework, i like the fact you used the dynamic lighting/shadows and i like the intro segment ^^
Controls seem fine for the most part but the boos feels a bit unreliable and akward to use, i had some cases in the 1st room where i boosted but didn't pass the high wall and some times the boost just got me too short and i fell in the spikes,
the mechanic itself is pretty cool and i like the puzzle element where you have a certain amount and have to figure out the best route to pass a room, the timing just felt a bit odd to me.
Other than that you guys did great :)