I love the idea. Something i really like is the fact that you can sell items to both teams, business is business after all.
Maybe the only problem is the font used for the items. I mistaked the < + > sign for a < - > and was selling all those items to the bad guys. I was getting a lot of money though...
The art is really good, althouh that stare the shopkeeper is givin is problably scaring customers...
Super original and fun. Great job!