Pitch underhand in Baseball: press 2 before throwing. To disable the cheat, press 1.
To change a ball color in Bowling, hold the D-pad in one of the following directions to change the color of your bowling ball.
To unlock alternate ball design in Bowling, achieve the Pro level.
No maps or meters on screen in Golf: while making a choice at the course selection screen, hold 2.
To unlock alternate court color in Tennis, when starting a game, hold 2 and the tennis court will become blue.