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Shellshock

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-Debug Mode:

To enter a special debug mode, wait for the Core 

Design copyright message to appear, then press Up, 

Down, Left, Right, Down, Down, Right, Right, 

Triangle. You will be taken to a test menu where 

you can choose your starting level, max your 

firepower, view all the videos, see the credits, 

and improve the game's appearance. 



-Invincibility:

Start a game and quit by pressing START+SELECT. 

At the main title screen press UP, UP, UP, DOWN, 

DOWN, DOWN, RIGHT, RIGHT, TRIANGLE. You will hear a 

chime.