The game is pretty well made the only complaint I have is that the art has no pixel consistency. The pixels for the character are smaller then those of the blocks, the sprite for the boss is way more blurry then the character (In the image you can see what I mean). Overall very well made you can be proud!
Thank you for playing and for the feedback.
I ran into an issue when not using anti-aliasing some tiles were way too jagged depending on the camera.
I tried implementing a pixel-perfect camera, but that made the parallax jitter, and I couldn't figure it out on time.
So I decided to use filtering on the textures, which gave this muddy look you talked about.