Bloom's Adventures of Batman: Mask of the Phantasm is the first Winx Club/Batman crossover planned to be made by RatiganRules. It is unknown when the film will be made.
Bloom and her friends (along with SpongeBob, Simba, Mickey Mouse, and their friends) have travelled to Gotham City and met the famous milionaire Bruce Wayne and his alter-ego Batman and they help him solve the mystery of the Phantasm and face Simba's old enemy, The Joker, whom Yzma works for.
- SpongeBob SquarePants, Patrick Star, Simba, Timon, Pumbaa, Mickey Mouse, Donald Duck, Goofy, and Yzma will guest star this film.
- Simba, Timon, and Pumbaa have faced The Joker before in Pooh's Adventures of 101 Dalmatians: The Series.
- Bloom, Simba, Mickey Mouse, and their friends will face The Joker again in Winnie the Pooh and The Halloween Tree.