While playing press BACK (next to the X-GUIDE button) and input the following codes:

DOWN, UP, DOWN, DOWN, UP, RIGHT, LEFT, RIGHT, YELLOW, BLUE, BLUE, GREEN

While playing press BACK (next to the X-GUIDE button) and input the following codes:

RED, GREEN, BLUE, YELLOW, LEFT, RIGHT, LEFT

While playing press BACK (next to the X-GUIDE button) and input the following codes:

RED, GREEN, RED, GREEN, UP, UP, DOWN, BLUE

While playing press BACK (next to the X-GUIDE button) and input the following codes:

UP, UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, RED, GREEN