Littlefoot's Adventures of Scooby-Doo on Zombie Island is the third Land Before Time/Scooby-Doo crossover film planned to be re-edited by yru17. It is planned to be shown on YouTube after Littlefoot's Adventures of Pokémon 4Ever.
Littlefoot and his friends (along with Stan, Kyle, Cartman, Kenny, Genie, and Zazu) join Scooby-Doo and the Mystery Inc. gang as they head to a mysterious place called Zombie Island.
- Stan Marsh, Kyle Broflovski, Eric Cartman, Kenny McCormick, Genie, Zazu, Ichy and Dil, Red Claw, and Screech & Thud guest star in this film.
- Ichy, Dil, Red Claw, Screech, and Thud will work for Simone Lenior and Lena Dupree in this film.
- Unlike TtarkosaurusRex2's film Pooh's Adventures of Scooby-Doo on Zombie Island, this is an NTSC film with NTSC bits from The Land Before Time series, South Park: Bigger, Longer & Uncut, the Aladdin trilogy, and The Lion King trilogy.
- Both The Land Before Time VI: The Secret of Saurus Rock, The Lion King II: Simba's Pride, and Scooby-Doo on Zombie Island were released directly to home video in 1998.