Different
I think people need to shut up about "this being taken from another game". Sure, there are PLENTY of games like it that came before. But you know what? Why don't I just go and claim that Halo isn't original by pointing out how similar it is to Quake or Doom? No point, because it's similar gameplay, but differences/enhancements.
This game is much like Bloody Pingu Throw, Kitten Cannon, Nanaca, etc. But you guys need to stop saying how "he stole the idea" because honestly, who can make a game today that is TOTALLY ORIGINAL? It's almost impossible. If you look, he drew all of it BY HIMSELF. Made upgradable items BY HIMSELF. and the coder coded it BY HIMSELF. It's not like they ripped apart the others and stole it all. It's all original except for the concept. Oh teh noes, he took a concept. Woopee doo. Watch a few sitcoms on TV and you'll see the exact same thing going on.
Sooo about the game. Regardless of how awesomely drawn it was, the gameplay suffers abit. I wait a few minutes after unloading the jet pack and gun on him, and he just flies forever. Of course, how do you make that fun with a game like this? You really can't. So it's alright. I won every award and played it all the way through. Intuitive, interesting, and sometimes exciting.
Another thing, the money issue. People complain about "how it takes tooo long to get" but it's actually really easy once you start slowly buying upgrades. I mean, what if it went fast? The game would end too soon. The point of getting upgrades is that it's supposed to be slow at first so you can keep playing for a while. THAT'S THE IDEA. I got all the upgrades no prob, just takes a little while to scrounge it up once you start, then it's super incredibly easy.
That's about it.
10/10 Art
10/10 Concept (Disregarding any similarities)
8/10 Sounds (They were generic and overused, but still cool)
6/10 Music (Got really dull after a while)
10/10 Gameplay (Very Addictive)