Press Left, A, B, Up, Down, Up(2), Left, Right, C, Right, Down, B on controller two during the introduction sequence. A debug screen will be displayed.
Full shields
Press Right, Left, A, Right, Up, C, B, Down, Left, B, A, Up, Start during the introduction sequence. Press A on controller two during game play to restore the shields.
Level select/ View FMV sequences
Press Down(2), Up(2), Right, Left, Right, Left, A, B, Start during the introduction sequence. A "Stage Select" option will now be available. Select a level number greater than twelve to view the FMV sequences.
Mania mode
Press B(2), A, C, Up, Left, Right, Down, Up, A on controller two during the introduction sequence, then press Start on controller one. The score will be set to "00001" when game play begins to confirm correct code entry. This mode is more difficult than the "Hard Rank" setting. This mode can be canceled by entering the option screen.
Pause demonstration mode
Press Start on controller two.
Super mania mode
Press B(2), A, C, Up, Left, Right, Down, Up, A, B on controller two during the introduction sequence, then press Start on controller one. This mode can be canceled by entering the option screen.
Unlimited continues
Wait until only one continue remains during game play. Allow demonstration mode to begin when "Continue 01" appears on the title screen. Press Right, Up, A, B, C, Left(2), Down, C, A, Start during the demonstration sequence. Press Start when the title screen re-appears to continue game play with ten continues. This may be repeated as needed for unlimited continues.
Voice test
Select the "Options" selection at the title screen. Hold A + B + C on controller two and press Start on controller one. A "Voice Test" selection will now be available at the options screen.
Debug mode...