This could also apply to movies, but let's keep this to games. Spray cans seem to find quite a bit of work when shit hits the fans in games. There's corridors filled with messages of the end times, warnings and discoveries scattered along walls, and much more. In some cases a well-placed symbol such as the one pictured has helped players survive. Sometimes you have to wonder "who the hell had the time to write this?" Right? What are some of the finer examples of graffiti in games? What games do you think had some silly uses of graffiti? Or heck, on a separate note, what's some cool artwork you've found in the form of in-game graffiti?