Boo Brigade Return

Boo Brigade Return is the Defensive Power Shot used by Boo in Mario Power Tennis. Boo achieves spinning around, becoming bigger, until it splits up into many smaller Boos, searching of the ball to hit it back to the opponent. Curiously, the Boo brigade does not show the "real" Boo with the glowing racket, but it appears once it finds the ball.

For some strange reason on some games, the human player's boos look messed up.