At the main screen, press Up(2), Down(2), Left(2), Right(2).
Pause the game and power off the Game Boy. When the Game Boy is powered back on, the game will automatically resume at the last point played.
At the mode selection screen, press Select. A musical note will appear when music is enabled. Note: Music is only played in modern mode games.
Earn two stars to unlock the Music room. Note: 200 points equals one star.
Earn five stars to unlock the Museum.
Earn ten stars to unlock the Flagman mini-game.
Earn twenty stars to unlock the Judge mini-game.
Earn thirty stars to unlock the Lion mini-game.
Earn forty stars to unlock the Spitball Sparkey mini-game.
Earn fifty stars to unlock the Donkey Kong 2 mini-game.
Earn fifty stars to view the ending credits.
Earn sixty stars to unlock the Fire mini-game in the Gallery.
