Nice game!
I like the chiptune music remixes used and the general retro look of the game!
The game plays really good, but I had a rough time trying to clear some of the longer jumps. I barely made it to the start of the second stage before I lost all my lives.
Also a heads up: Windows doesn't like the exe file you attached. I suggest you change it into a regular ZIP file that the player can extract manually.
Good job!