Super Duel Mode

Super Duel Mode is a mode exclusive to Mario Party 5. In this mode one buys vehicle parts using points received by playing mini-games and builds a battle vehicle to use in different tournaments or against friends. To unlock all the different parts, one must play all the tournaments and beat certain opponents. There are a total of 44 different parts that can be used to customize a vehicle. The last two, Bob-omb Wall and Bowser Punch, are unlocked after all other parts are purchased. There are five symbols that indicate different aspects of the vehicle's ability:
 * Red Heart: Health
 * Green Steering Wheel: Handling
 * White Boxing Glove: Power
 * Blue Vehicle Icon: Top Speed
 * Yellow Vehicle Icon: Acceleration

After the player has made the vehicle, there are various options to improve the vehicle:

Vehicle Parts
The following is a list of all the parts the player can use:


 * Body Types


 * Tires


 * Engines


 * Weapons

Super Duel Battles
The player can choose the battle from the garage menu, but only Battle Competition on easy and normal are available at the start. In order to unlock the rest, the player must complete each game as it opens on the normal or hard level. If the player loses any game, the tournament ends and the player receives no trophies.

In all competitions, there are obstacles, such as stationary Spiny Shells or Bob-ombs that detonate within a certain amount of time or upon contact. The size of an obstacle mirrors the damage it can do. Warp Pipes simply block vehicles. Mushrooms occasionally appear along the course and grant the vehicle better speed and control for a certain amount of time when collided with, as well as Poison Mushrooms, which hinder speed and control.

Terrain can vary when battling a CPU or a human player in a arena called Random Ruckus. Dirt and grass are present and do no special effects. Metal and ice make the vehicles harder to control. Lava damages and pushes away the vehicle. However, if a vehicle is equipped with Lakitu Cloud or E. Gadd Jet tires, the vehicle does not get affected by any sort of terrain.

The goal of this 90 second game is to eliminate the opponent. If nobody wins, the battle ends. The player must fire the weapon with B at the other player and keep moving to avoid opposing attacks and obstacles.
 * Battle Competition

In this game, the object is to collect three flags before the opposing player does. This game's time limit is also 90 seconds; the game ends if nobody collects three flags. Although hitting the opposing player slows them down, attacking the opposing member is not the goal of the game.
 * Flag Competition

This time the goal is to wipe out three Robo-Rabbits before the opposing player does within the time limit of one minute and thirty seconds. Again, the player can shoot and slow down the opposing member. The Robo-Rabbits are very fast and can tunnel underground.
 * Robo-Rabbit Competition