The player is being transported out at sea and he is holding on to the handles of a jet ski. The player holds the Wii Remote horizontally, like how one would hold the handles.
The ski would move at a constant speed, but the player can choose to give the Wii Remote a twist to get a power boost. For maximum advantage, don't boost until the meter is completely full and has turned purple.
In Slalom Course, the player would have to drive the jet ski through various checkpoints laid out by the game. The goal is to get through each checkpoint within the short time frame of 10 seconds.
VS mode plays just like Slalom Course, but with an opponent. Finish the track with the most points to win.