Really enjoyed the game, it's amazing how much you crammed into the time! One piece of feedback, on level 3 I was wondering why the collision with the lowest explosive box was broken, I was dropping right through it - before I realised it was a door an I had to save it for last! I can see now that it has a doorknob + slightly more oval shape than the boxes, but maybe a colour change could help discern it at a glance from the other boxes (also for some of the later levels) so players immediately know where the end goal is?