While not officially released by Sega, a prototype of an Akira game for the Sega Genesis exists. Based on the popular anime film, it was likely to feature fast-paced action and likely incorporate elements of the movie's dystopian setting and violent themes. Its unfinished state means complete gameplay details remain unknown. The project was cancelled for unknown reasons, resulting in its status as a rare and sought-after piece of gaming history among collectors. No official release date or publisher is available, highlighting its developmental nature.

Akira (Prototype)

Air Diver (USA)