Galaga Tennis Racket:
To unlock the Galaga Tennis Racket for purchase at the Pro Tour Shop for 18,000 points, win the U.S. National Open Grand Slam on the second year running and with Hard mode of Galaga Tennis unlocked.
Pac-Man Tennis Racket:
To unlock the Pac-Man Tennis Racket for purchase at the Pro Tour Shop for 18,000 points, complete one year of Pro Tour mode with two Grand Slam Titles (Lyon and Australian Open) won and with Hard mode of Pac-Man Tennis unlocked.
Alternate costume:
To unlock a character’s fifth outfit, beat Arcade mode with that character.
Very Hard mode:
To unlock Very Hard difficulty in Arcade mode, beat Arcade mode on Hard difficulty. Defeat any opponent with any character in Training mode on the Hard difficulty setting to unlock the Very Hard difficulty setting in Training mode. Defeat any opponent with any character on the Hard difficulty setting to unlock the Very Hard difficulty setting for mini-games.