All Guns
For all guns, press Left, Right, Up, Up, Down, Left, Right, Black, White at the main menu.
0% success rate. 

Sonya Express
Complete the game once using either the 'normal' or the 'hard' difficulty setting.

Wheel of Fortune
Complete the Sonya Express.
0% success rate. 

Alternate Costumes
When choosing your character, press either A or X to use alternate costumes.

Hidden Secret Ending
Enter the 'Options' screen from the main menu and select 'Opening Edit'. Next, highlight the 'Replay' selection, then hold L + R and press A to view the hidden secret ending.

In-Game Reset
Press Start + Back to reset the game. Note: This may not function in some parts of the game.

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