I really liked the art! Except for some mixels (when you mix two or more "pixel sizes" in pixel art), I recommend you never doing that (which happens when you scale a sprite, for example), it doesn't look very good. But the colors were nice and it had some cool animations.
Gameplay was simple and basic for a platformer, not innovating much but still I thought it was pretty fun! Didn't notice the health numbers on the top at first tho, and even thought I wasn't being hurt but actually was being helped by enemies since they launch you up. That was, until I died. Maybe making it bigger would solve it
Not sure how it fits the theme aswell, aside for the joke at the end, but good job still!