Pitch underhand:
While pitching, press 2 before throwing. To return to a normal delivery, press 1.

Perfect throw:
When pitching just flick your wrist to get a perfect throw.

Pitching combos:
While pitching hold A for a screw ball, hold B for a curve ball, or hold A + B for splitter.

When pitching, flick your wrist as if you were throwing a curveball and you will throw a hard fastball.

Easy homeruns:
To hit a baseball out of the park swing with as much power as possible. Time your swing just right and you will hit it out of the park.

Home Run training session gold medal:
To get a Gold Medal, hit every ball pitched to you out for a home run. You must do this ten times or you will not get the gold medal.

Ground-rule double:
If you hit a baseball and it bounces into the stands, it will be a ground rule double.

Extra pins:
When aiming for the pins in the first aiming thing, move all the way to the far right or left. Then depending on which direction you aimed the first one, aim the second one as far as you can go in the same direction. Your target will be in another lane.

Alternate ball color:
When starting a game of Bowling, hold the D-pad in one of the following directions to change the color of your bowling ball. Press Up for blue (default color), Left for pink/red, Down for green, or Right for gold.

Star Ball
If you get your Skill Level to 1,000, your ball will become heavier and no matter what color, it will have a bunch of stars on it.

Training Power Throws:
When on the "final lane" of Power Throws, move all the way to the right (or left, depending on which hand you use). Turn toward the wall two to four notches then release the ball on top of the wall. If done correctly, the bowling ball will travel down the top of the wall past the pins, and all 92 pins will fall down at once.

Training mode picking up spares gold medal:
Knock down the pins with a single throw. Twist your wrist to curve the ball. If you knock down all the pins on seventeen lanes you will earn a gold medal.

Training mode picking up spares platinum medal:
Knock down the pins with a single throw. Twist your wrist to curve the ball. If you knock down all the pins on all twenty Lanes you will earn a platinum medal. REMEMBER: Lane 20’s pin is only a single pin and will be easy to pick up.

Scare Crowd :
To scare the crowd while bowling, start the regular motion for bowling and let go on the backswing. The ball will fly backwards and the crowd will scream and jump.

Hold Wiimote in front of stomache to block low attacks.

No maps or meters on screen:
Hold 2 when making a choice at the course selection screen. The power meter, map, and wind speed indicator will no longer appear.

Reading the green:
While on the green, press 1. You can see a detailed view of the green from where the level of the green changes.

Alternate court color:
When starting a game of Tennis (or immediately after choosing "Start Over" on the Position Select screen), hold 2, The tennis court will become blue.

Super serve:
When you are serving, just when the ball is at the highest point quickly flick your wrist. You will see white smoke from the ball and it will be difficult to hit. This may require some practice.

Silver Racket:
Turn Pro in Tennis to unlock the Silver Racket