Slot Car Derby is a minigame in both Mario Party and Mario Party 2.
The controls are not overall considered difficult, but it is difficult to maintain a position. At the starting line, if a player holds the Control Stick when it says "go", the player will be penalized for five seconds. If the driver goes too fast, he or she will start to spin. The first player to reach the goal wins.
In Mario Party, there are two tracks with one being shorter and having less complex turns than the other, which has a similar shape to Luigi Raceway. In Mario Party 2, there are three tracks: the first one is bean-shaped, the second one C-shaped, and the third one is cloverleaf-styled. However, the game tracks the best times for the minigame as though they were the same track.
In Mario Party, the minigame will end in a draw if no players have reached the goal within 2 minutes. In both games, if a player stands still and another player rams into them, that player is out.
- 1'00"00 (both courses)
Mario Party 2
- 40"00 (Course 1)
- 50"00 (Course 2)
- 1'00"00 (Course 3)
- Control Stick (Push) – Speed up
- Control Stick (Let Go) – slow down
- Game Rules – "Push the control stick lightly, and drive your Slot Car to the finish line. If you go too fast, you'll spin out in the corners."
- Game Rules (Mini-Game Island) – "Push Control Stick lightly and race your car around the track. Clear the game by winning the race."
- Advice – "Smoking tires is a sure sign of going too fast. If you don't slow down, you'll definitely spin out."
Mario Party 2
- Game Rules – "The first one to complete 4 laps in the Slot Car Derby wins! Don't spin out by speeding around curves!"
- Game Rules (Mini-Game Coaster) – "It's a 4-lap Slot Car Derby! Be the first to cross the finish line to clear the game."
- Advice – "Tilt your Control Stick as far as you can on straightaways for max speed!"