Endgame Cheats (PlayStation 2)

Beat the game in Arcade Mode with the weapons shown below:

  Beat with pistol: machine gun
  Beat with machine gun: cane gun
  Beat with cane gun: shotgun

Beat all the Mighty levels in Cadet Training.

Finish all episodes of the Mighty Joe Jupiter Trilogy to unlock Music Juke Box in the
Options screen.

Beat Arcade mode with the shotgun.

On the main menu, press:

 X thirteen times, SQUARE,

 X five times, SQUARE,

 X two times, SQUARE,

 X nine times, SQUARE,

 X seven times, SQUARE,

 X three times, SQUARE,

 X eight times, SQUARE,

 X five times, SQUARE,

 X, SQUARE, and then

 X twenty times.