Mario Tennis: Ultra Smash Bonus courts
Successfully complete the indicated task to unlock the corresponding court:
- Carpet Court: Play 5 matches of any type.
- Ice Court: Play 30 matches of any type.
- Morph Court: Win at least one match on all other courts.
- Mushroom Court: Play 10 matches of any type.
- Rebound Court: Play 40 matches of any type.
- Sand Court: Play 20 matches of any type.
Bonus characters
Successfully complete the indicated task to unlock the corresponding character:
- All Star characters: Win 15 consecutive Knockout challenges.
- Bowser Jr.: Play 10 standard matches in Classic Tennis mode.
- COM Strength-Ace: Win 50 consecutive Knockout challenges.
- COM Strength-Pro: Win 30 consecutive Knockout challenges.
- Dry Bowser: Play 10 simple matches in Classic Tennis mode.
- Sprixie: Hit 100 consecutive shots in Mega Ball Rally.
- Toadette: Play 10 Mega Battles.