Damn, this is the shizzle!
This was f*n awesome! The only possible improvement would be more skins. Anyone people want to beat the shit out of. Like Osama, or Saddam, or the Govenator, or Jim Carrey, or Paris Hilton, or Hayden Christiansen (teenage Anakin, there are so many people who'd love to beat the shit out of him), yourself (just for some self deprecating humor), John Zirbes (PK fans would love to see that), Jauqes Chirac or some generic frenchie (damn cheese-eating surrender monkeys), Tony Blair (for balance, and for the British Newgrounds fans), Snoop Dogg, and a bunch of other celebrities we love to hate.
And maybe a Matrix-type effect, where the camera zooms in and everything goes slo-mo right when the buddy gets hit.