Kingdom Hearts 3: 10 Perfect Ways For Pixar Characters To Be Included
3. Monster's, Inc.
986903How: Its own world and/or summon.
Disguised as monsters, Sora, Donald and Goofy could find themselves in Monstropolis just in time to come across Mike and Sulley during their time with Boo in the original film. With a great setting, a simple premise and clear villains in Randall and Waternoose - who could, perhaps, be attempting to harness Heartless in their quest to power the Scream Extractor - the original film offers an easy and fun template for a memorable world all its own.
Should the creative team want to bring characters introduced in Monsters University into the fold, like Art, Sora could leave Monstropolis with the power to conjure up and open a door in the middle of battle, summoning random monsters to his side and giving any number of popular minor characters from the series the chance to make a surprise cameo.