Some of Ferrio's remaining themes are also featured in the videogame Red Dead Revolver.
She also provided voice acting for the video game Red Dead Revolver.
The game reproduces a "grainy film" effect and uses music from various Spaghetti Western films, including film scores composed by Ennio Morricone.
During an extensive three-year research period for the novel, and while simultaneously maintaining lead writer positions first for Rockstar Games Red Dead Revolver and then for WowWee Robotics, Warren consulted with scientists from Woods Hole Oceanographic Institution (WHOI) and worked with a team of concept artists: – Steven Olds, Ron Lemen, Daren Bader – and creative director and designer Michael Limber, who is also Warren's business partner.
Red Army | Grateful Dead | International Red Cross and Red Crescent Movement | American Red Cross | Red Hot Chili Peppers | Red Sea | Red Star Belgrade | Red | Little Red Riding Hood | Detroit Red Wings | Red Bull | Red River | Red Hat | Red Dwarf | The Walking Dead | Dead Kennedys | International Committee of the Red Cross | Red River of the North | The Walking Dead (TV series) | New York Red Bulls | IUCN Red List | Simply Red | Red Wing, Minnesota | Dawn of the Dead | Red Skelton | Red Army Faction | Dead Sea | Red Fort | Pokémon Red and Blue | Red Deer, Alberta |
His voice can be heard as Chester Cheetah for Cheetos and most recently (2006) in the popular video games, as Dwayne from VCPR New World Order talk radio in Grand Theft Auto: Vice City Stories by Rockstar Games, and as Black Garius, the bad guy, in Neverwinter Nights 2, and as various characters in Red Dead Revolver.