Set in and around a multiple story parking lot, Traffic Jam is one of those It pinched some level design ideas from LameDuke but don't let that. Credits to Vertexguy onlinecasinotablegames.net Category. Gaming. License. Standard YouTube License. Show. Christopher Paul "Chris" Kline is an American artist/musician best known as " Vertexguy" or the . On June 28, , Kline's rendition of the Duke Nukem theme, titled " Duke Nukem Jam ", was presented on 3D Realms' front page Biography · Games contributed to · Other productions.