There is a series of games about some kid in big puffy pantaloons swinging a key at monsters, with his pals Donald Duck and Goofy. Sometimes they go into the world of Tron and meet Jeff Bridges. Sometimes they hang out with Pinocchio. Mickey Mouse is there, and he's an imposing figure. Also, Final Fantasy characters hang around sometimes.
We have to point this out from time to time, because getting used to something like that would be an official indicator of loss of sanity. Let's all keep one foot in the real world while we watch this Kingdom Hearts 3D trailer.