Fireshark gunboat
Finish the 'Up The Nagau' level, on the ensign difficulty setting to receive the Fireshark gunboat.

Guncat catamaran
Finish the 'Protection Racket' level on the ensign difficulty setting to receive the Guncat catamaran.

Gunshark gunboat
Finish the 'Ships In The Night' level on the ensign difficulty setting to receive the Gunshark gunboat.

Jackal Devil boat
Finish the 'Assault On Black Moon' level on the ensign difficulty setting to receive the Jackal Devil boat.

Lightning speedboat
Finish the 'A Friend In Need' level on the ensign difficulty setting to receive the Lightning speedboat.

Pike speedboat
Finish the 'Payment Is Due' level on the ensign difficulty setting to receive the Pike speedboat.

Salamander speedboat
Finish the 'Fish In A Barrel' level on the ensign difficulty setting to receive the Salamander speedboat.

Switchblade hydroplane
Finish the 'Gladiator' level on the ensign difficulty setting to receive the Switchblade hydroplane.

Tigershark gunboat
Finish the 'Sampan Surprise' level on the ensign difficulty setting to receive Clanbake Battle mode.

Clanbake Battle mode
Finish the 'A Poke In The Eye' level on the ensign difficulty setting to receive the .

Kingdom Come Battle mode
Finish all levels in the 'Baptism of Fire' act on the ensign difficulty setting to receive Kingdom Come Battle mode.

Metal Massacre Battle mode
Finish the 'Hurricane Of Fire' level on the ensign difficulty setting to receive Metal Massacre Battle mode.

Infinite ammunition
At the title screen, press Black, White, L, R, click Right Analog-stick(2), press Y, X, then press Start. If you entered the code correctly, you will hear a sound. Note: If the code does not activate the first time, reset the Xbox and try again. To enter another code, remain on this screen until the game returns to the title screen on its own.

Infinite turbo
At the title screen, press Up(2), Down(2), Left, Right, Left, Right, B, A, then press Start. If you entered the code correctly, you will hear a sound. Note: If the code does not activate the first time, reset the Xbox and try again. To enter another code, remain on this screen until the game returns to the title screen on its own.

Invincibility
At the title screen, click Left Analog-stick, click Right Analog-stick, press Down, Left, Down, Left, B, Y, then press Start. If you entered the code correctly, you will hear a sound. Note: If the code does not activate the first time, reset the Xbox and try again. To enter another code, remain on this screen until the game returns to the title screen on its own.

All Boats
At the title screen, press Up, Down, Left, Right, L, B, X, X, Right Analog Stick, Start. If the code was entered correctly, you will hear a sound. If the code did not work, reset the Xbox and try again.

Never over heat
When your primary weapon starts to over heat just push start and the resume the game. When you do that your primary weapon will be back to normal.

Get Kraken's Maw Battle Arena
Use the captain difficulty level and finish the Shakedown level.

Pufferfish
At the title screen press A, B, Black, White, Y, X, R3, R3, L3, L3, Start. You can now use the pufferfish boat in battle mode.

Blood Ball Mode
At the title screen press X, Y, White, Black, B, A, Left, Up, Right, Down, Start. You will now be able to play blood ball mode in 2 player battle mode.

All Battle Modes
At the title screen press Y, A, X, B, L3, R3, Black, White, R, R, Start. You will now be able to play all battle modes.