Klax
Options screen:
Press Select at the title screen.
Level select:
Enable the "Options screen" code. Hold II + Select and press
Run at the options screen. Use I and II to change the
brightness of the screen.
Level preview:
Enable the "Options screen" code. Hold Select and press
Run at the options screen. Use Up and Down to preview the levels.
Sound test:
Enable the "Level select" code. Hold II + Select and press
Run at the level selection screen.
Extra credits:
Hold Select and press Up at the continue screen for an extra
continue. Alternately, press Select on controller five for
up to nine continues.
Unlimited credits:
Press Up + Select + I + II during game play to increase
your credits to nine.
Pause game:
Hold Run on controller five to pause the game.
Sound test:
Enable the "Level preview" code. Hold I and press
Run at the level preview screen.
