Really charming style, and a good variety of upgrades. I liked that the pulsar held them in place so that you could hit multiple at once. I felt like the shooting speed was fine since you can hold down your mouse and auto-fire. A few of the earlier levels could've used a few more fuzzies to earn some extra cash and so that they weren't getting spawn-blasted, but the variety of faster and tougher guys later in the game made up for it.
I lost 3 levels - level 8 once (I let too many of the healing fuzzballs stay on the screen for too long, and they got gigantic), and twice at the last boss. I really liked that you could still earn and carry over gold from levels, so that you could keep building up and win eventually regardless of skill/item placement. Great jam entry!