Fun game, I enjoyed the controls of it. Very lenient with input, felt very responsive. Great work with that!
I think the creepy/fleshy art direction was very good for the theme, nice music too. However, the color scheme was absolutely putrid, and not in a thematic way. All enemies were shades of green, and would drop green splats, and also shoot green projectiles. In the later levels, the contrast no longer exists with all the mush; it becomes difficult to make out what is happening. Had contrasting colors been applied a bit better, with different colors for live enemies and for background splat details, it would have made the game less gross (mechanically) near the end.
Some mechanics like the enemy strength escalation and HP gain from Combos felt very off. It's very counter intuitive when the enemies up to a certain point simply deal 1 HP, then suddenly the bag head enemy takes away 3 HP and kills you instantly in the event you did not arbitrarily expire a combo to gain extra health. This got extremely confusing to me until I played a few more times, but it didn't feel like any sort of discovery, just that the game rules were being shown in an obtuse way.
Also, the game did not register my highscore, so that made me sad too. In any case, I still played the game to the end with a score of 12543 so obviously you guys definitely created an engaging work to say the least. I don't think I'd like to play it again, though.