Nice! I liked how the eating/get fat mechanic made you think ahead about picking the precise food for each situation (in other words, eating just enough), the addition of weights made for more ingenious levels at the end.
Movement was a bit stiff, though, fine for the simpler stages, but I had some difficulties on some finicky jumps, especially on the last level where it took me a bit to jump the last little gap while being "level 3 fat". Maybe this jump's difficulty was intentional, but on that one I almost thought I was doing the puzzle wrong.
That said, it's a fun and quick puzzle platformer!