Pooh's Adventures of Castle of Illusion Starring Mickey Mouse is another upcoming Winnie the Pooh crossover film planned to be made by RatiganRules. It is unknown when the film will be made.
The film is a side-scrolling adventure of Winnie the Pooh, Ash Ketchum, Bloom, Simba, Littlefoot, Gwen, Taran, Skipper, Tommy, Scooby-Doo, Kim Possible, and their friends teamming up with Mickey Mouse in a magical quest to save Minnie Mouse from the evil witch named Mizrabel, who has kidnapped Minnie to steal her youth. Each level exists within the large titular castle and Pooh and the others must defeat enemies and bosses by jumping on them, or collecting apples and marbles to use as projectiles. Pooh and the others can also collect icons to increase health, collect extra lives, or gain bonus points. After defeating a boss, Pooh and the others are given a gem. When all seven gems are collected, Pooh and the others can build a rainbow bridge that allows them to walk into the castle's tower for a final battle against the witch (who in her youthful form resembles Queen Grimhilde).
- Ash Ketchum, Pikachu, Misty, Brock, Togepi, Bloom, Stella, Flora, Musa, Tecna, Layla, Roxy, Simba, Timon, Pumbaa, Littlefoot, Cera, Ducky, Petrie, Spike, Chomper, Ruby, Gwen, Trent, Owen, Lindsay, Tyler, Duncan, Courtney, Zoey, Mike, Cameron, Taran, Princess Eilonwy, Fflewddur Fflam, Gurgi, the Penguins of Madagascar (Skipper, Kowalski, Rico, and Private), the Mighty Morphin Power Rangers, Scooby-Doo, Shaggy Rogers, Daphne Blake, Fred Jones, Velma Dinkley, Kim Possible, Ron Stoppable, and Rufus will guest star in this film.
- This film will use the 2013 remake version of Castle of Illusion Starring Mickey Mouse, not the original 1990 version of the game.