Hi, congrats on your game! :) That's really cool, I love the art style. 1-bit games have a charm that I can't quite explain. As for the game itself, I think it has a lot of potential. The mechanics like jumping and movement were implemented very well. However, what I felt was lacking a bit was some sort of interaction between the black and white sides of the level. Currently, the white side feels like a separate level, and doesn't have a direct interaction with the black side.
If you have some spare time, please try out my game. It's a classic space shooter from the 80s but with a personal touch. Please leave your honest feedback.