Killerball (game)
Killerball (in Swedish also written Killerboll) is a ball sport which is played in among the Swedish P.E.. In the sport one must throw a soft ball on other players and thereby "kill" them, "killed" players must wait outside of the ball pitch until their "killers" have been "killed" themselves. One wins when one "kills" all of the other players, the sport may also be time-limited and then the winner is the one who has "killed" the most players when the time's up.
Rules
A ball may be taken up by one after hitting the floor/the walls. The thrower must stay where he/she is until the ball is thrown. Normally a throw is "killing" only if the ball hits one without hitting the floor/the walls before the hit; normally a hit in the head is not "killing" for preventing brain damage, sometimes the hands are shields and then a hit in a hand is not "killing". One may also catch a thrown ball with one's hands, and then one "kills" the thrower.