* Self-Destruct: While you are playing, pause the game and press UP,
      UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, B, A, START.
    * 9 Continues: On the Title Screen, rapidly press X.
    * 30 Lives: On the Title Screen hold LEFT and press A, A, A, START.
    * Super Demo: On the Title Screen hold A.
    * Full Weapons: While you are playing, pause the game and press UP,
      UP, DOWN, DOWN, L, R, L, R, A, B, START.
    * Random Weapon Select: On the Weapon Select Screen press RIGHT to go
      to the next screen, then press X, Y, X, X, Y, Y, X, Y.
    * Arcade Mode: At the Option Screen, highlight Game Level and press A
      quickly.

Cheats by Martin Strohmeier - Martin.Strohmeier@t-online.de