when stepping forward one step at a time, things seem to work consistently, but chaos arises when you hit the play button and just let it fly.
also, one of the push boxes in 7 is unnecessary, and so are most of them in 15
i also got stuck on 11, 13, and 16. i almost have a solution to 11 but it doesn't quite work, but i just can't figure out the others.
a sandbox mode would be cool as well
last but not least, the enemies don't seem to quite fit the art style of the rest of the things