Bases, or base devices, are the devices located in areas around the arena. The device itself and the area around the device are both known as "bases" to players, although it is clear to players that the device is what is being referred to when talking about "destroying a base" or "shooting at a base" and the area around the base is being referred to when talking about "going to a base" or "sitting in a base". The device is contained by an open box which is mounted on a wall somewhere, and the device itself is hemispherical in appearance, black, and decorated by flashing lights. There are many red lights on it for decoration. However, there are three green lights located around it which are also sensors and which players shoot at; inexperienced players often have trouble because they aim at the red lights, which are not sensors. If a player shoots the base a sufficient number of times (determined by the game's settings), the player will eventually deactivate or "destroy" the base, which means that the player has just collected a large number of points for their team, and also that the base has been deactivated for a period of time. Depending on the game's settings, the base may shoot back once it has been deactivated, or while a player is shooting at it. Players hit by a base are deactivated for a period of time. In some games, the bases are used for completely different purposes, or not at all.