Mario Golf (Game Boy Color)

Mario Golf on the Game Boy Color.

Note: The following content applies to the U.S. version; Content may be different depending on region.

Development Room
With a memory editor, change RAM address to  in an area such as the character stats screen in story mode and resume gameplay. The player will be redirected to a room with two rows of seven characters on the top right of the map. Outside of this area, it is completely empty, with nothing but glitched star scrolling animations and a single solid mushroom that doesn't do anything.

Left Row:
 * Mario - takes the player to a end-of-hole animation test. Pressing Left and Right switches between sets of characters, while Up and Down selects the charcter. There's no exit from this screen, other than restarting.
 * Luigi - takes the player some sort of screen filled with various graphics from the game, likely to see how characters appeared on the screen. The games allows the player to move around after pressing the A or B button. Restarting is the only way out.
 * Yoshi - player goes to the locker room
 * Toad - player goes to the front of Marion Clubhouse
 * Peach - player goes to the lounge
 * Wario - player goes to the trophy room
 * D.K. - player goes to the Caddie Master's Office

Right Row:
 * Mario - takes the player to a VS. Results screen, then the end-of-hole animation test, but with an incorrect palette for the dialogue boxes
 * Luigi - the player is shown a different debug overlay
 * Yoshi - the player is shown how many stars he/she needs to get for Toad Highlands. Leaving it goes the menu for 1P play modes.
 * Toad - shows the player the tournament total; leaving it goes straight to the main menu
 * Peach - shows rankings for tournament mode; leaving it goes outside the Marion Club
 * Wario - The sepia effect is turned on, followed by a series of beeps. Dialogue boxes retain the sepia effect.
 * D.K. - the player is taken to a character animation test screen; touching Mario and Wario goes back and forth between different characters, while touching Peach and Toad cause the player to do his putting animation.

Debug Display
With a memory editor, change RAM address to  during gameplay to see a HUD that flickers on the screen to simulate a transparency effect. Note that any time the player switches view that the font gets overwritten.