Chain meter:
Press Z during game play to display a chain meter
under the chain status.
Additional credits:
You will start the game with three credits and earn
one for every hour of play to a maximum of nine credits
(six hours). Free Play mode is unlocked after seven hours.
Gallery 1 option:
Successfully complete trial mode without using any continues
to unlock the "Gallery 1" option at the "Appendix" menu.
Alternately, accumulate at least five hours of total game play.
Gallery 2 option:
Successfully complete the game under any difficulty setting
to unlock the "Gallery 2" option at the "Appendix" menu.
Alternately, accumulate at least ten hours of total game play.
Sound test option:
Successfully complete the game under the easy difficulty setting
without using any continues to unlock the "Sound Test" option at
the "Appendix" menu. Alternately, accumulate at least fifteen
hours of total game play.
Game mode option:
Successfully complete the game under the normal difficulty setting
without using any continues to unlock the "Game Mode" option at the
"Appendix" menu. Alternately, accumulate at least twenty hours of
total game play.
Control two players at once:
Note: This trick requires two Wavebird controllers. Set the receivers
on the same channel and use one Wavebird on the same channel. You can
then control two players at the same time. Set them side to side
(horizontal) or (vertical) above each other by pushing them to the
edges of your screen. If one gets wasted, you can quickly change color
so you will have one black and the other white.
Increase score permanently:
Every time you continue, the last digit of your score goes up by one
permanently. For example, if you continued once it is a "1", twice for
a "2", etc. This is useful for gauging how much you have continued once
the "Free Play" option has been unlocked.
Sites: