Wow! Love this one so much. Great presentation, super polished, addictive gameplay, great power-up system. The Snorbles are definitely a very plushyrrific (could see them working well in plushy form) sort of dudes!
I think you've already gotten a bit of feedback on the reloading mechanic. I agree that it's too difficult to tell when it's time to reload, and the game would benefit from a *RELOAD RELOAD* like in lightgun games, and possibly a different placement of the bullet meter which makes it easier to see since otherwise your eyes are not likely to be on that part of the screen. And especially since there are so many possible modifiers to your bullet capacity, so you can't just keep track in your head easily how many shots are left.
Aside from that, I'd say turn the vignetting effect when you're losing way way down. It's very distracting when you're trying to concentrate on anti-anti-worble destruction and all of a sudden this vignetting darkens everything and kills the flow. It also makes it much harder to come back from that.
Overall, an excellent, super polished game! Would love to see more of it post-jam!