Go to exhibition mode and play with two players. Have player two as the pitching team, and player one on the batting team. Press A to pitch the ball. As soon as you press A, when player 2 is preparing to pitch, quickly go to player one and charge up for a charge swing. Then, hit the ball when your character is fully charged. Most of the time you will get a home run. Note: Using characters such as Wario, Donkey Kong, Bowser, and other power type characters are recommended.