We do an ensemble/mob programming over a kata, but some of the participants are secretly saboteurs! Like a game of "werewolf"

The idea is that a saboteur does not want to be found right? So a saboteur will make believable sabotage! And hence we end up living team dynamics we could live in real life situations and the team tries to solve them, while coding, and fighting the sabotage instead of the saboteur.