This was pretty cool, first off the art is great really beautiful stuff. the audio wasn't anything to write home about but saying it's a gameboy style game it doesn't really impact me to much. the gameplay was nice and the leap was a fun mechanic.
The only issues I have a pretty small and honestly didn't affect the game a whole lot they would just be nice to have/change so here's a short(ish) list.
1) pressing S slowing you down in the air was just a bit annoying because you need to hold S and jump at the same time to activate the leap. 2) the hit boxes felt a bit strange at times mainly when falling off blocks. 3) It was hard to know when you should leap and when you should just jump and led to me leaping in places I could just jump too, a clearer/greater distinction between normal jump and leap would be nice. 4) again audio could be better but really not the biggest complaint, you could also have it to where the music doesn't reset every time you die. 5) the more horizontal based level design sections were definitely less fun and interesting compared to the vertical ones, I would just say focus more on vertical platforming and make horizontal sections less challenging and shorter.
Overall this was really well made and challenging. it looks great and feels nice to play. there's stuff that could be improved but it didn't really hinder my experience a whole lot if at any, a pretty solid entry.