The Load Glitch is a glitch in Halo 3 that allows players to see unloaded areas of a Campaign level. Generally, the unloaded portion of a map is colored white or off-white. Many such areas can be seen in Theater. On rare occasions, a player might be able to observe a fault—a load glitch—in this system: a spot where an unloaded area (or, rather, the void where the area used/is-about to be) can be seen. Such areas are, during Theater, displayed as a solid color (usually off-white); during actual gameplay, a hall of mirrors effect occurs.