Chiyonofuji no Ooichou is a sumo wrestling video game for the Nintendo Entertainment System that allows players to create a personalized wrestler with a chibi-style appearance. Players can customize facial features and then engage in matches against other wrestlers to attain the title of Yokozuna. The game features two action bars for offense and defense, along with a tutorial mode for practicing against a less challenging AI opponent.
The player is able to customize their own sumo wrestler by giving him a unique appearance. Characters have a chibi appearance to them.
Items that can be added include are the eyes, ears, mouth, and nose. Once the customized wrestler is created, he must fight against other sumo wrestlers for the title of Yokozuna. There are two bars for each player that allow the player to fend off and deliver attacks. A tutorial mode is added that allows players to practice their moves against an AI opponent that is lower in intellect that the actual game's AI.