Littlefoot's Adventures of SpongeBob SquarePants: Christmas Who? is the first upcoming Land Before Time/SpongeBob SquarePants crossover short film planned to be made by Daniel Esposito. It will appear on Google Drive as part of a double feature with Littlefoot's Adventures of Scooby-Doo! The Mystery Begins in the near future.
Littlefoot and his friends (along with Ash, Simba, and their friends) visit Bikini Bottom for the first time as Ash, Stan, Simba, and their friends help Littlefoot, SpongeBob, and their friends learn the meaning of Christmas.
- The Vultures (Buzzie, Flaps, Dizzy, and Ziggy), Jiminy Cricket, Zazu, Ash Ketchum, Pikachu, Misty, Togepi, Brock, Simba, Nala, Timon, Pumbaa, and Genie guest star in this short film.
- This short film will be part of a double feature with Littlefoot's Adventures of Scooby-Doo! The Mystery Begins (also guest starring Stan, Kyle, Cartman, Kenny, and Genie).
- This short film explains how Littlefoot and his friends learned about Christmas.
- Like Pooh's Adventures of SpongeBob SquarePants: Christmas Who?, this is an NTSC film with NTSC bits from The Land Before Time films, The Jungle Book 1 and 2, Pinocchio, Mickey's Christmas Carol, Mickey's Magical Christmas: Snowed in at the House of Mouse, The Lion King films, the Pokémon films, and the Aladdin films.
- Littlefoot and his friends will celebrate Christmas again in Littlefoot's Adventures of The Nightmare Before Christmas.
- Yru17 originally planned to re-edit this short film, but he retired from re-editing anymore crossovers, so Daniel Esposito will make this short film instead.