The Pizza is a LIE!


 * A reference to "the cake is a lie" from Portal.
 * A recurring message found throughout the game.
 * Usually found in out-of-bounds areas.
 * Possibly related to a discovery and a subsequent realization Dr Horn made in Xen.
 * Possibly a reference to the observer effect or the measurement problem in quantum mechanics, suggesting that the pizza can be both truth and lies depending on your observation of it.
 * Stored as c2a4x_pizzalie_graffiti.vtf in ***\steamapps\sourcemods\BMS\materials\decals (2012 Mod Release) or ***\steamapps\common\Black Mesa\bms\bms_textures_dir.vpk -> materials\decals (Steam Release) (where *** is the Steam Library location), viewable with VTFedit.

Locations

 * On the wall where Code A was found.
 * On the wall in the hidden room where Clue C can be heard.
 * In a hallway past a large shipping container in the first level of Lambda Complex
 * Found in "We've Got Hostiles!" in a shack. The shack also has a serial number on it: 4891
 * After a cart ride - on a side of a pipe submerged in toxic waste in "Blast Pit"

Below is a table listing the locations of every "The Pizza is a LIE!" graffiti in the game in both the 2012 Mod Release and the 2015 Steam Early Access Release of Black Mesa.

The locations have been found by searching for every instance of the decal texture for the "The Pizza is a LIE!" graffiti (decals/c2a4x_pizzalie_graffiti) in the .vmf source files of the maps. For the mod release of Black Mesa, the maps were decompiled in order to get the .vmf's. For the Steam release, the original .vmf's for the single player campaign included with the game were used, and just the multiplayer maps were decompiled. For the Surface Tension Update (cu3) and later releases, decompiled .vmf's were used as updated official .vmf's for these releases have thus far not been released to the public.