Loved it! The art and design are phenomenal, and the writing's fun too. The UI is also great, though I did get a little confused in the first menu and accidentally hit 'retry' instead of 'next'. The font was a tiny bit hard to read, but not impossible. The puzzles were challenging in just the right way - fun, but not too frustrating.
I also loved the sound effects, it made punching things extra satisfying! The controls were a bit finicky sometimes when it came to punching up and down, but overall this was a blast.