Go to Special Games option,
then go to Code Entry, and put in your code.
Mario Cup:A3W5KQA3C
Luigi Cup:M1C2YQM1W
Peach Cup:OF9XFQOFR
Donkey Kong Cup:MM55MQMMJ
Wario Cup:UOUFMPUOM
Waluigi Cup:LA98JRLAR
Bowser Cup:N24K8QN2P
Mariotennis.com Cup:48HwOR482
Blockbuster Cup:ARM6JQARU
