List of Ready Player One licensed characters (Fanon version)

This is the list of characters who could probably appear in the movie.

Ghostbusters
Bandai Namco, Capcom, Cartoon Network/Warner Bros Animation, DC Comics, Disney, Don Bluth Movies, Dreamworks Animation, Electronic Arts, Hasbro, Konami, Koei Tecmo, Level-5, Marvel Comics, Nickelodeon, Nintendo, Platinum Games, Rovio, Sega, SNK, Shonen Jump, Square Enix/Taito Sunsoft, and Tatsunoko
 * Stay Puft Marshmellow: He's seen ramping through New York during the race & is seen in the final battle.