Great game design, and interesting levels that looked very distinct from one another. There was a feeling of, I don't know, nostalgia? Even if I never played this game before, it reminds me of games like Psycho Fox (old sega genesis game), like James Pond (another sega genesis game), I cannot grasp the exact description but it has a "thing".
I accidentally found a bug during the first boss fight! Since I recorded the whole thing, you'll be able to see. I restarted the game real quick, though, and speedran through the level to get to the boss.
Overall very nice experience, surprising how many elements are there (bosses, levels, different enemies, etc). Great job!
Oh, and before I forget, here's my full playthrough of the game (the UI is cut in the video but it was fine in the game, I'm just bad with video editing):