Punch Donkey Stage Thoughts

This is definitely a very well-done stage. Fun to play, with a fun gimmick at the start, a nice setting and good gags, especially in the superb boss fight.
The only more-or-less "problem" I could think of is one of focus. As I mentioned in a half-sentence, I think the gloves that fling you are pretty underused for how fun they could be. There is definite potential, and one for more evil in particular - for a game calling itself hard ;). As is the case with the sand bags - neat concept, works perfectly, but it's in one single part and that's it.
I think both of these could return later on, be combined with the ceiling-punchers, something like that; make the entire level a tighter design that isn't just section 1, section 2, section 3 with no interconnection. A split path where you can either go on top to get yourself punched across gaps, or a bottom one with sandbags...something like that. As it is, it works, but I think it's wasting just a tiny bit of potential to be even better.