ドラゴンボール改アルティメット武闘伝 (Japanese title: ドラゴンボール改アルティメット武闘伝) is a Nintendo DS game released in Japan. It is based on the popular anime and manga series, Dragon Ball. This game is an RPG-style game, where the player controls Goku and his friends as they battle their way through various levels. The game features a variety of characters from the Dragon Ball universe, including Vegeta, Piccolo, and others. The game also features a variety of mini-games, such as a fighting game and a fishing game. Players can also collect various items and upgrade their characters. The game also includes a special mode where the player can control a giant robot, the “Ultimate Butou Den”. The game has been praised for its vibrant visuals and its fast-paced action. Dragon Ball Kai - Ultimate Butou Den is a great game for fans of the series, or anyone who enjoys action-packed RPGs.