Ronald McDonald's Adventures of Scooby-Doo on Zombie Island is the first Ronald McDonald/Scooby-Doo crossover film planned to be made by Yakko Warner. It will appear on Google Drive in the near future.
Ronald McDonald and his friends (along with Homer Simpson, Earl Sinclair, Tai, Danny, and the rest) join Scooby-Doo and the Mystery Inc. gang as they head to a mysterious place called Zombie Island.
- Homer Simpson, Marge Simpson, Bart Simpson, Lisa Simpson, Maggie Simpson, Santa's Little Helper, Snowball II, Grandpa Simpson, Patty and Selma, Gina Vendetti, Milhouse VanHouten, Alex Whitney, Ned Flanders, Todd Flanders, Rod Flanders, Earl Sinclair and his family, the DigiDestied, Danny, Sawyer, Dave Felis, Renamon, Gaomon, Scrappy-Doo, Scooby-Dum, One-Eyed Sally, Blather and the Predator will guest star in this film.
- Unlike TtarkosaurusRex2's film Pooh's Adventures of Scooby-Doo on Zombie Island, this is an NTSC film (ripped from the DVD) with NTSC bits of The Wacky Adventures of Ronald McDonald series, The Adventures of Ronald McDonald: McTreasure Island, the Scooby-Doo films (featuring Scrappy-Doo), The Scooby-Doo Show episodes (featuring Scooby-Dum), The Simpsons Movie, Digimon: The Movie, Dinosaurs (Jim Henson TV Show), and Cats Don't Dance.
- One-Eyed Sally, Blather and the Predator will work for Simone Lenior and Lena Dupree in this film.
- Unlike the real film, Scrappy-Doo and Scooby-Dum will make special appearances in this film.
- Ronald McDonald, Homer Simpson, Earl Sinclair, Scooby-Doo and their friends will face Simone Lenior, Lena Dupree and Jacques again in Ronald McDonald's Adventures of Space Jam (where those three villains will be teaming up with Mr. Swackhammer and the Monstars).
- The only reason why Homer Simpson, Marge Simpson, Bart Simpson, Lisa Simpson and Maggie Simpson are guest starring in this film is because the Simpsons once fought a mob of zombies in The Simpsons episode, Treehouse of Horror III.
- Like in Pooh's Adventures of Scooby-Doo on Zombie Island (in which Pooh, Piglet, Tigger, Rabbit, Eeyore, Tennessee, and Chumley get captured by Simone Lenior and Lena Dupree in the dungeon along with Fred, Daphne, Velma and Beau), Ronald McDonald and his friends, Homer Simpson, Marge Simpson, Patty and Selma, Grandpa Simpson, Ned Flanders, Earl Sinclair, Fran Sinclair, Danny, and Sawyer will be captured by Simone Lenior and Lena Dupree in the dungeon along with Fred, Daphne, Velma, and Beau in this film.