The game overall was fairly fun and I enjoyed the challenge of playing through each level.
Like I said, the challenge was good, and the fact that there were usually multiple ways to go up a level was also pretty nice.
There were many problems with collisions, like sometimes getting stuck on the ground, or just weird collisions with the moving platforms.
The movement itself also felt a bit sluggish personally, and the fact you can punch anything unless you stop moving was pretty annoying, though it didn't affect the experience too much as you never really had to punch many things in the game.
I'd also look into blending the assets a bit better so they match. For example, the art for most of the level tiles were pretty different in comparison to like the spikes or player/enemy sprites.
Overall the game can use some improvement but nevertheless it was fun to play through, good job!