Just before the announcer says, “Go!”, hold both Gas buttons. If done correctly, your speed should increase immediately to maximum power.
Win the game on expert mode. Then after the ending sequence, return to championship mode and choose the new reverse mode option to go through the course backwards.
Repeatedly tap A after falling off the jet ski to climb back quickly.
Pause the game immediately after a stunt and just before the announcer speaks in stunt mode. If done correctly, only the announcer’s voice will be heard. Then, a large number of extra points will be awarded for simple stunts. Another way get extra points is to cross the finish time as the clock reaches zero.
Highlight a character and hold Up on the Analog-stick when selecting a jet ski to choose between two different color schemes.
Less air time
Just before hitting a big wave or ramp, press B to reduce the amount of air time.
Press C-Up and C-Down to adjust the zoom. Press C-Left and C-Right to change the camera angle.
Press R to slide on the water.
Note: This trick will not work on v1.1 of the game. Select stunt mode and ride in Dolphin Park. Then, go through all the rings and perform the following stunts:
Handstand (off throttle, Down and Up)
Spin (off throttle, sweep Analog-stick clockwise)
Stand (off throttle, sweep Analog-stick counterclockwise) and Somersault (hold Down)
Roll left (off ramp, press Right and hold Left)
Roll right (off ramp, press Left and hold Right)
Flip (off ramp, hold Up and press Down)
Dive (off ramp, hold Down and press Up)
If done correctly, a dolphin will squeak as you cross the finish line. Now exit, select championship mode and the warm up option. Then, hold Down on the Analog-stick when selecting a character. Now when game play starts, your character will be riding on a dolphin. It can perform a Flip, Barrel Roll, and Submarine stunts. Note: The dolphin may only be used within this area. This secret is saved with your game, so that the stunts do not have to be repeated.
Select championship mode, normal, and warm up. Then during the game, follow the dolphin around the course three times mirroring each stunt that it performs. If done correctly, the dolphin will jump over the bridge after the Dolphin Park sign.
Do the same as the baby dolphin trick, except the dolphin must be followed for twenty course laps. Then, a killer whale will appear to lead the baby dolphins.