Bowser Jr.
Top 5 Best Characters in Mario Tennis Aces
Oh goodness gracious, can Bowser Jr. be a pain to deal with. Like Waluigi, Bowser Jr. is a defensive specialist, meaning that it can be nigh impossible to put him away properly. The range of the Koopa Clown Car makes it so that nothing is out of his reach, and his trick shot is probably the best in the game, allowing him to build up his energy meter quickly and frequently.
His drop shot is a threat to characters who prefer to strike from afar, but because of his capability to return practically anything, he can play from wherever he wants. If you want to rush the net, you can. If you want to hang back and pepper the opponent with charge shots, you can do that, too – and considering Bowser Jr.’s penchant for filling the energy meter, that is probably the preferred playstyle.