Very cool short game! I really liked the spritework, despite being so low resolution, and liked the idea of having a "single screen" metroidvania.
Really liked the gravity mechanic, and how you use it for the last boss (both bosses were really well made too!).
I think I would have preferred to not be able to zoom out or in myself, having it the game handle it at specific points (like the spider boss) feels like it could have been better, and defaulted on having the whole map in the screen while exploring (to hammer the point of being a single screen map a bit more, just a preference).
My only complain is that the gun was a little bit too loud compared to the rest of the sounds, so even when I lowered my volume, when shooting it would drown every other sound and music.