This document provides details about the characters, courses, vehicles, gameplay modes, and controls proposed for a Mario Kart game on the Nintendo 3DS. It outlines 11 playable characters and 11 unlockable characters with descriptions. Numerous retro and new race courses are presented across different cups. Small, medium, and large vehicle options including cars and bikes are identified. Single player modes like Grand Prix and Time Trials as well as multiplayer options like online racing are covered. New items and controls are also outlined.