BOOST JUMP. Essential to reach many secret short cuts. When travelling along at full speed, suddenly hit reverse throttle (left trigger) and the turbo (A) to jump into the air. The height of the jump is controlled by how long you hold down the button.
TURBO START. When the countdown is takiing place before the race, hold down the reverse throttle until the number 1 appears. Then switch to full throrrle (right trigger), and off you go.
FISHING BOAT. Work your way through the game and enable the hidden tracks. Then, on the boat selection sreen, hold down both triggers and press view (Y) twice. Selecting the Chumdinger enables you to race in a fishing boat.
ALL TRACKS-2 PLAYER MODE. To unlock the secret tracks you must win every race in two player mode - You will eventually manage to unlock all the tracks and all the boats.
BONUS TRACK. If you think you've finished all the tracks then think again. Before starting a game, go to the options screen and highlight BACK. Then press UP, UP, DOWN, UP, DOWN, DOWN, START and you will open a new track.