 Doom was originally the hunter who killed Bambi's mother.Benny the Cab was first conceived to be a Volkswagen Beetle before being changed to a taxi cab.Ideas originally conceived for the story also included a sequence set at Marvin Acme's funeral, whose attendees included Eddie, Foghorn Leghorn, Mickey Mouse, Minnie Mouse, Tom and Jerry, Heckle and Jeckle, Chip n' Dale, Felix the Cat, Herman and Katnip, Mighty Mouse, Superman, Popeye, Olive Oyl, Bluto, Clarabelle Cow, the Seven Dwarfs, Baby Huey, and Casper the Friendly Ghost in cameo appearances.