Superheroes patrol SL in an odd, yet oddly logical slip from Role Playing, to er…something else that’s like Role-Playing. Sort of. See the story here, at the Second Life Herald.
To quote from the story (Justice League of Second Life, by Peppermint Fizz, at the SL herald)
“A little over a year ago, a couple of fans of superheroes started a group as a comic book interest group. In the time since, the group has developed into an actual security force in Second Life.”