Cheat menu: Pause the game and highlight the "BGM Volume"
option. Hold L + Z + B + X + C
+ R (in that order). A cheat menu will appear when all
the indicated buttons are held. The cheat options allow levels,
ammunition, power, and lives to be adjusted. Highlight a cheat
option and rapidly press C to increase its value. After
the cheat menu is enabled, it may be redisplayed at any time by
pressing L while the game is paused.
