Body Builder is a 2 vs. 2 minigame in Mario Party 6. the name is a pun of "bodybuilder", a person who builds up muscle.The page "Building a Bot," in the Miracle Book features Luigi and Boo playing the mini-game.
The parts needed to assemble the robot perfectly fall from above onto the platform in the center. It then lowers, taking the robot with it, and is then replaced by another platform.
The teams have to construct a robot by hitting a switch to make the correct pieces fall onto the feet of the robot and keep building up. The pictures of the pieces rotate on a machine and the players have to take turns hitting the switch when the piece they need is in the middle of the rotating screen. The panel showing the piece required is highlighted. The players alternate whenever one of them hits the switch.
The winner's robot begins to move its arms and head as they both act their victory.
- – Jump
- Rules – "Take turns stopping the wheel at the right spot to pick a part and build a robot! The first team to build a complete robot wins!"
- Advice – "The glowing section on the wheel shows you the next part you need."