Pretty damn good for a 2002 game. The whole idea of it is just so random, but honestly I'll just go with the weirdness, especially since it played well.
The collecting slushies being the main goal was cute, and I liked that the violence was more of a side thing. It both fits in with the old Newgrounds violent tendencies, and with those who don't really care for it as much.
The game was fairly easy if you just wanted to get to the end, though it was challenging if you wanted level one clearance. I thought that the concept of after beating it you unlock cheats was a good way to keep it fun for a little longer. The mini games were a nice touch as well.
Three main issues: One, when you got hit and landed inside an enemy you would remain invincible until you moved. Two, the attacks were annoying because they didn't much knock back on enemies, meaning that you had to readjust your distance to kill anything that takes more than two hits. Three, the clone thing was a little repetitive, 50 was a bit much to have there, or at least make it so they die faster than that.
Overall, unique and fun game here, just shy of 5 stars because of what was mentioned above, and that it felt a little unpolished. Good job HappinessSam.