Louis Wu, with help from Devin Olsen, Gil27 and others, is documenting a so-called Spectator Mode glitch in Halo 2 that allows players to enter a "spectator mode" of sorts, rendering the player invisible and invincible and allowing for instant travel across maps. Gil27 produced a Bungie.net Game Viewer image showing the exploit in action; the map diagram shows a flag capture from a place on the map where there is no flag. Devin Olsen also produced some videos of the glitch before it was demonstrated to be exploitable in multiplayer. The glitch is being publicized so that players are aware that it exists and to help Bungie police or patch it.