Derby Dash is a 4-player minigame in Wii Party. The concept of this minigame is similar to Charge, from Wii Play.
The camera goes past each Mii once, then zooms out to show the first section of the track.
Players try to be the first to reach the finish by using speed boosts strategically. Since horses cannot go offscreen, any speed boosts used at the front edge of the screen are slightly less effective. Players generally seem to get better results when they use multiple speed boosts at once. The speed boost meter recovers very slowly, so players shouldn't rely on getting much of the bar back. If all of the boosts are used, the horse will slow down very quickly.
If two or more players finish close together, a photo finish will happen.