To unlock duke you must clear arcade mode without dropping one game. Once you have done this instead of an exhibition match appearing at the end of the mode, a special match message will appear and you will face Duke. Once you beat Duke you will unlock him. This can be done on any difficulty setting and as a male tennis player.
Unlockable How to Unlock Duke Clear arcade mode without dropping a game.
Contributed By: megamanias.
Play as Theron Tenniel or Vicky Barney
On the player selection screen, select "LOAD" to bring up the Custom Player Selection Screen. From there, press LB to select Theron Tenniel. Press RB to select Vicky Barney.
Contributed By: niniendowarrior.
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