League games are overlooked by a number of referees who stand in the arena with the players, watching for violations of the rules. Referees hold what are commonly known as "god boxes", which are remotes with three buttons on them that can be used to punish players who break the rules, either by "shielding" them or "terminating" them. The shield is a warning punishment used for minor offences, and it has the effect that a player cannot shoot or be shot for a period of time, like being deactivated, except that the lights on the pack stay on, and the player does not lose power. Terminations deactivate a player for a period of time, and in addition they remove a large number of points from the player, and these are used for major offences. There are two types of terminations, level ones and level twos, the level two termination being the more severe of the two. If a player receives three level two terminations, then the player leaves the game and receives a zero score.