Level replay
Press [A], [Up], [R], [Z], [Down], [Z], [C] at the load game screen to replay any previously completed level.
Sound test
Press [Right]x2, [Left], [Z], [A], [X], [Y] at the title screen.
Split-screen opening FMV sequence
Hold [L] when the NCS logo appears to split the opening FMV sequence into four screens. Release [L] to return to a single screen display.