Super Monkey Ball 3D is an action puzzle, racing and fighting game in which you play as AiAi and friends. In the action puzzle mode you guide a monkey in a ball through a maze while collecting bananas. You have to reach the end of the level before the time runs out.
The racing mode called the Monkey race lets you race solo against Ai controlled opponents or against up to three other players locally. This mode is similar to Mario Kart and offers various power-ups to fight off and protect yourself from opponents, as well as speed strips and ramps. In the last mode called Monkey fight you fight against Ai controlled opponents or against up to three other players locally in arenas similar to Super Smash Bros.