Cheat mode
Note: This requires two controllers. During game play, insert a controller into port two, then remove it without doing anything else. Next, immediately press [X]x2, [Y]x2, [B]x2, [A]x2 on controller one to enable cheat mode. The sound of a guitar will confirm correct code entry.
Invincibility
Enable the "Cheat mode" code, then press [X], [Y], [A], [B], [X], [Y]. The health gauge will turn yellow and the sound of a guitar will confirm correct code entry.
Note: Never jump into a spinning fan blade while invincible. You will not die and cannot get out of them.
$1,000
Enable the "Cheat mode" code, then click [Left Analog-stick](2), [Right Analog-stick](2), [Left Analog-stick](2), [Right Analog-stick](2). The sound of a guitar will confirm correct code entry. Repeat the code to get more money.
Sepia color
With only a controller in port one inserted, press [L], click [Left Analog-stick], click [Right Analog-stick], press [A], [B], [R], [B], [A], click [Right Analog-stick], click [Left Analog-stick], press [L]. Then, insert a controller into port four, then remove it without doing anything else. Repeat the code to disable its effect.
Area select
Enter "©@®&" as a player name. Start a new game and the area selection screen will appear. Note: You must select the "Symbols" option to enter those characters. The area selection screen will appear after you accept that name.