Feels nice to be playing this again! I didn't manage to lock myself or the boxes in any weird point of the map this time!
Finally managed to get through the first level with 2 boxes, not sure what was the problem previously though.
I normally dislike levels that require you to do things in a time attack manner, but having the retry button fixes that, also it wasn't that long so no problem.
The only weird thing I found was that somehow the character falls from the thin platforms if I move left and right real quick. Not sure why, but if I change directions real fast it reacts as if I pressed down and jump.