The pixel art is great, and the music is really nice! I would discourage the use of mixels though, as they can look a bit wonky sometimes. The story was good, and the game fits the theme well! Gameplay also felt very smooth, I especially like the little squash and stretch and dust animation when jumping! I did see some coyote time, which is nice, though it couldn't hurt to also add some jump buffer!
Very much enjoyed this one, keep it up :D
also the cat box sprite is magnificent