Who let the J-Dawg Out? is the working title of a Grand Theft Auto V spinoff concept by GokaiWhite. It stars Jimmy De Santa as the main protagonist, and retells most of GTAV's events from his perspective.
The game is tentatively expected to be a 2.5D "run-and-gun" side-scroller/platformer, incorporating some online FPS and JRPG elements.
More information to be added later...