In a few games including some MMOs like EQ1 they introduced systems where you could basically become a creature in the world and hunt things and attack players. You get points based on how long you stay alive and if you kill anyone. But a death means you lose your creature.
Without getting into specifics on a single games particular system, do you think it would be cool as a player to take control of say a kobold and try to outplay questing players and other mobs?