nice
awesome game. i like the upgradability in it. it has definite replay value.
my only issues with it:
|-| add a sound effect when you pick stuff up. sometimes i wasn't sure if an item disappeared, or if i got it. confusing...
|-| character customization. maybe add unlockable things? more replay value in that one.
|-| and lastly, the first level, there are a BIT too many enemies. it definately suits my taste, but you need to cater to the casual gamer as well. you know?
|-| and add more upgrades if possible. i'm not exactly sure what you could add, just something cheap to waste money on. it doesn't even need a huge function, just something you can buy to waste money and make it seem as though you're getting somewhere.
all in all, great game. thumbs up dude.