Awesome game! I love the visuals. It feels very cozy and nostalgic! I especially like the cool details like the CD loading sound.
My feedback would be that it feels a bit clunky and frustrating that you can't move during the bounce part after jumping on a crate or enemy. It's also hard to jump while walking down a slope because the character kind of bounces along the slope. (Very noticeable while walking down the first stairs you activate.)
The dithering is also a bit too strong (or big?) for my liking but that's just a minor thing.