10 is like the perfect number for dismemberment threshold. not low enough that you fall to pieces the first time you make contact, but low enough that when red slams blue with an elbow his chest pops off. awesome game
since you say you don't want to add-on to the game since it was for a 48 hour event, maybe make another one cause i loved this and would love to see more things to do in it.
 "Drunken Wrestlers"){kind=icon}
 "Nuclear Outrun"){kind=icon}
 "You Are The Road - Molyjam 2012"){kind=icon}