Unlimited ammunition: Press Black, White, L, R, click Right Analog-stick(2), press Y, X at the "Start Game" screen, then press Start. A sound will confirm correct code entry. Note: If the code does not activate the first time, wait at the main screen until it switches back to the "Start Game" screen and try again. To enter another code, remain on this screen until the game returns to the "Start Game" screen on its own. Unlimited turbo: Press Up(2), Down(2), Left, Right, Left, Right, B, A at the "Start Game" screen, then press Start. A sound will confirm correct code entry. Note: If the code does not activate the first time, wait at the main screen until it switches back to the "Start Game" screen and try again. To enter another code, remain on this screen until the game returns to the "Start Game" screen on its own. Invincibility: Click Left Analog-stick, click Right Analog-stick, press Down, Left, Down, Left, B, Y at the "Start Game" screen, then press Start. A sound will confirm correct code entry. Note: If the code does not activate the first time, wait at the main screen until it switches back to the "Start Game" screen and try again. To enter another code, remain on this screen until the game returns to the "Start Game" screen on its own. All boats: Press Up, Down, Left, Right, L, B, X(2), click Right Analog-stick at the "Start Game" screen, then press Start. A sound will confirm correct code entry. Note: If the code does not activate the first time, wait at the main screen until it switches back to the "Start Game" screen and try again. To enter another code, remain on this screen until the game returns to the "Start Game" screen on its own. All levels: Press X, Y, Up, Right, Left, Down, Up, Down, L(2) at the "Start Game" screen, then press Start. A sound will confirm correct code entry. Note: If the code does not activate the first time, wait at the main screen until it switches back to the "Start Game" screen and try again. To enter another code, remain on this screen until the game returns to the "Start Game" screen on its own. Blood Ball mode: Press X, Y, White, Black, B, A, Left, Up, Right, Down at the "Start Game" screen, then press Start. A sound will confirm correct code entry. Note: If the code does not activate the first time, wait at the main screen until it switches back to the "Start Game" screen and try again. To enter another code, remain on this screen until the game returns to the "Start Game" screen on its own. Puffer Fish: Press A, B, Black, White, Y, X, click Right Analog-stick(2), click Left Analog-stick(2) at the "Start Game" screen, then press Start. A sound will confirm correct code entry. Note: If the code does not activate the first time, wait at the main screen until it switches back to the "Start Game" screen and try again. To enter another code, remain on this screen until the game returns to the "Start Game" screen on its own. Rubber duck mode: Click Right Analog-stick, click Left Analog-stick, R, L, Black, White, Up, Down, Left, Right at the "Start Game" screen, then press Start. A sound will confirm correct code entry. Note: If the code does not activate the first time, wait at the main screen until it switches back to the "Start Game" screen and try again. To enter another code, remain on this screen until the game returns to the "Start Game" screen on its own. Import boat mode: Press Y, B, X, A, L, R, Left, Right, click Left Analog-stick, click Right Analog-stick at the "Start Game" screen, then press Start. A sound will confirm correct code entry. Note: If the code does not activate the first time, wait at the main screen until it switches back to the "Start Game" screen and try again. To enter another code, remain on this screen until the game returns to the "Start Game" screen on its own. All battle modes: Press Y, A, X, B, click Left Analog-stick, click Right Analog-stick, Black, White, R(2) at the "Start Game" screen, then press Start. A sound will confirm correct code entry. Note: If the code does not activate the first time, wait at the main screen until it switches back to the "Start Game" screen and try again. To enter another code, remain on this screen until the game returns to the "Start Game" screen on its own.