To complete a lap - steer your jet bike between the buoys in the correct order. Laps must be completed within the given time to qualify for the next course. There are five courses in each championship.
Instructions:

Controls for player 1:
Up arrow - accelarate
Right arrow - turn right
Left arrow - turn left

Controls for player 2:
W - accelarate
D - turn right
A - turn left
Press P to pause.