While on the title screen, the controller plugged into port 1 may be used to unlock the cheats by using the button presses from the table below, in the correct order, followed by START.

Feedback: A sound effect will play when any cheat is activated.

Duration: Once a cheat is activated, it will stay in effect until the power is turned off or the game is ejected. The only exception to this is that going to the Xbox Demos menu will de-activate cheats.

Enter the following code at the title screen: RIGHT THUMB, LEFT THUMB, RIGHT TRIGGER, LEFT TRIGGER, BLACK, WHITE, UP, DOWN, LEFT, RIGHT.

To unlock the Puffer Fish at the main title screen and enter this code: A, B, BLACK, WHITE, Y, X, RIGHT THUMB, RIGHT THUMB, LEFT THUMB, LEFT THUMB

At the start screen press X, Y, UP, RIGHT, LEFT, DOWN, UP, DOWN, Click Left Analog Stick, L, and press start.

Unlock the following Battle Modes by completing the corresponding challenges:

Clanbake Battle Mode: Beat "A Poke in the Eye" level (Ensign difficulty)
Kingdom Come Battle Mode: Beat "Baptism of Fire" level (Ensign difficulty)
Metal Massacre Battle Mode: Beat "Hurricane of Fire" level (Ensign difficulty)

To unlock new and exciting watercraft, complete the corresponding challenges:

Fireshark Gunboat: Beat "Up the Nagau" level (Ensign difficulty)
Guncat Catamaran: Beat "Protection Racket" level (Ensign difficulty)
Gunshark Gunboat: Beat "Ships in the Night" level (Ensign difficulty)
Jackal Devil: Beat "Assault on Black Moon" level (Ensign difficulty)
Lightning Speedboat: Beat "A Friend in Need" level (Ensign difficulty)
Pike Speedboat: Beat "Payment is Due" level (Ensign difficulty)
Salamander Speedboat: Beat "Fish in a Barrel" level (Ensign difficulty)
Switchblade Hydroplane: Beat "Gladiator" level (Ensign difficulty)
Tigershark Gunboat: Beat "Sampan Surprise" level (Ensign difficulty)

Enter this code at the title screen: Y, B, X, A, LEFT TRIGGER, RIGHT TRIGGER, LEFT, RIGHT, LEFT THUMB, RIGHT THUMB.

To unlock Blood Ball enter this code at the title screen: X, Y, WHITE, BLACK, B, A, LEFT, UP, RIGHT, DOWN.

To gain invincibility enter at the title screen the code: Click Left Analog Stick , Click Right Analog Stick, DOWN, LEFT, DOWN, LEFT B, Y, START.

To unlock all the battle modes, at the title screen enter the code: Y, A, X, B, Click Left Analog Stick, Click Right Analog Stick, BLACK, WHITE, R, R, START.

To unlock all boats, at the title screen enter the code: UP, DOWN, LEFT, RIGHT, L, B, X, X, click the right analog stick, then press START.

If you're always running out of ammo, at the title screen enter the following code for infinite ammo: BLACK, WHITE, L, R, Click Right Analog Stick, Click Right Analog Stick, Y, X, START.

At the title screen enter the code: UP, UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, B, A, START.

Beat the Protection Racket level on 'Captain' level difficulty.