- Score display
At the main menu, press Left(2), Right(3), Left, Right, Start on a
standard controller or light gun D-pad. If you entered the code correctly, a "0"
score will appear at the top left portion of the screen.
- Blood selection
Successfully complete original mode to unlock a blood color option.
- Goldman costume
Successfully complete original mode. Then the Goldman costume will
appear in the trunk of the car in the next original mode game.
- Rogan costume
Begin a game in original mode and select the 2.0 Bullets and the
Double Score items from the trunk. Rescue all civilians except for the second person on
level 4. Complete the game and enter the bonus room at the end. A Rogan Costume and an
Infinite Credits item will be in the room.
- Infinite super ammunition
Successfully complete training mode with a five red star rating on
each stage. Then, infinite super ammunition that kills with one hit will be unlocked.
- Infinite continues in original mode
Successfully complete training mode with all five red stars. Then,
successfully complete boss mode with all five red stars. Finally, get two stars in fight
all mode. Then the "Continue" option will change to "Free Play". Note:
For the Japanese version of the game, successfully complete training and boss modes.
- Bonus options in boss mode
Successfully defeat and obtain a ranking for all bosses in boss mode
to unlock "Emperor" and "Fight All Bosses" options.
- Play as Gary
Use a controller in port B to play as Gary instead of James in
single player mode.