I have been to a few bachelor parties, but I have never been to a bachelor party that had chickens.  I guess they just know how to party in Sweden.  I don't know what game they are playing, but I've never done that at a bachelor party either.  I have been to strip clubs, gone camping, attended sporting events, took a boat trip and done other activities for bachelor parties, but never have I dressed in a panda suit and run some sort of obstacle course while holding a live chicken, and I think I am passed the age where that would be acceptable or even fun, but I did enjoy watching someone else do it!