Cool game, gives me early Spore vibes. I personally do like the pixel art style, it might just be the background that throws people off? Like its not all in one unified style. If you want to change the art style I think a Fear and Hunger type art style would fit with the game, but do whatever YOU want! As others said, I think having some indication of what you're supposed to do starting out, and how the upgrades work could be good, just in case. I'd like to see a way to regain health, maybe by killing enemies you get a small amount back. It would be nice to try to tweak the movement a little so its easier to get around. I really like the little bug guys floating around, and how they can eat each other to get bigger. I'm also making a bullet hell shooter esq game called Shmooblin Blaster, so if you want to check it out and leave some feedback I'd really appreciate it! Good luck in the jam!