From the game website:
“10 Bad LARPs” is a series of improv-style, spectators-encouraged LARPs. The format of each game is a back-to-back series of micro-LARPs, each of which is ten minutes long. Players do not get any clue as to the characters they will be playing until each game begins. There are no mechanics at all – instead, players simply pantomime actions and resolve them dramatically, similar to how improvisational comedy works.