Speeding Bullets is a Free-for-All minigame featured in Mario Party 9 and Mario Party: The Top 100. The name is likely inspired by the Superman phrase "faster than a speeding bullet." This minigame and Smash Compactor are the only Free-for-All minigames in Mario Party 9 to have unique music.
Players ride Bullet Bills and try to be the first to reach the finish line. Along the way, they will encounter dash zones, which increase their speed meter by one, and Piranha Plants in Warp Pipes, which decrease their speed to one. The faster the player is going, the bigger each movement will be.
The bonus objective for this minigame in Time Attack involves passing over each dash zone.