Liar Ball

Liar Ball is the name of the Special Ball that Waluigi uses in Mario Superstar Baseball. The player must obtain a Whiskered Eggplant Power-Up in Challenge Mode of Mario Superstar Baseball before being able to use this move. While pitching, Waluigi is able to throw both a regular baseball and an eggplant, confusing the batter as to which to hit.

If Waluigi is batting, he hits both an eggplant and a baseball, confusing the fielders as to which ball to catch. It is very similar to Wario's Phony Ball with the only difference being is that Wario uses garlic.

Mario Super Sluggers
This Star Pitch is completely different in Mario Super Sluggers. Waluigi throws a giant baseball, which reverts to its normal size upon reaching the batter. The giant baseball can end up messing up the batter's timing. It also can place the ball in an unusual position after reverting to its regular size.

Trivia

 * Waluigi's bio in Mario Superstar Baseball states, "The eggplant that the Liar Ball delivers is said to have the power to make those who touch it lose their lunches."