All Working Game and Watch Gallery 2 Cheats - GameBoy Color

Change border
Pause game play and press [B]. Note: This may also be done at the game over screen.

Toggle music
Press [Select] at the mode selection screen. A musical note will appear when music is enabled. Note: Music only is played in modern mode games.

Museum
Earn 10 stars during game play. This also will allow the music room to be accessed.

Oil Panic
Earn 20 stars during game play.

Green House
Earn 30 stars during game play.

Mario Ball mini-game
Earn 35 stars during game play.

Life Boat
Earn 40 stars during game play.

Donkey Kong Jr.
Earn 50 stars during game play.

Soundstation
Earn 55 stars during game play to unlock additional music.

Rain shower
Earn 70 stars during game play.

Spit Ball Sparky mini-game
Earn 80 stars during game play.

Bowser Ball mini-game
Earn 100 stars during game play.

Star mode
Earn 1,000 points in modern mode to unlock Star mode at the mode selection screen. Note: It may not appear inall games.

Soundstation
Earn 6 stars during game play.

Reset saved game
Press [Up]x2, [Down]x2, [Left]x2, [Right]x2 at the main screen.

Avoid misses
Press [A] and [B] to move around easier and to avoid more misses.