Pizza Box and Graffiti Arrays

Some of the background maps in the 2015 steam release of Black Mesa have patterns or arrays of either pizza boxes or "The Pizza is a LIE!" graffiti somewhere in the map. These can be found in the following maps: background10, background12, and background14. Their purpose or significance remains unclear.

Array of graffiti found in background10

 * Found on a wall only accessible via noclip.
 * Colloquially referred to by some as the "Wall of Lies".
 * Accidentally removed from the map during an art upgrade for the v1.0 release of Back Mesa.

Array of pizza boxes found in background12

 * Found inside the generator hall next to the dam.
 * Requires noclip.

Array of graffiti found in background14

 * Requires noclip.