I have some game ideas that I think might allow for a greater range of roleplaying.
Idea 1: Hero Battle - The game is 3(Or any proportionally small number) heros against the field. The heros need to keep moving around or they'll be slaughtered by the hordes of bandits(or orcs or goblins or whatever.)
Idea 2: Bridge Batte - We rope off perhaps a 5'x30' area in which the goal is for two even teams is to duke it out and try to get to the other side. Cries of "Hold Men, think of your children at home" should ring clear.