Here are all the guides, tips, and strategies to enjoy playing Mario Tennis: Ultra Smash with cheats and unlockables.
Characters
| Character | How to Unlock |
| Bowser Jr. | Play 10 standard matches in Classic Tennis Mode. |
| Dry Bowser | Play 10 simple matches in Classic Tennis Mode. |
| Sprixie | Hit 100 consecutive shots in Mega Ball Rally. |
| Toadette | Play 10 Mega Battles. |
Courts
| Court | How to Unlock |
| 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. |
CPU Difficulties
| Difficulty | How to Unlock |
| COM Strength-Pro | Get 30 consecutive knockout challenge wins. |
| COM Strength-Ace | Get 50 consecutive knockout challenge wins. |
Star Characters
Get 15 consecutive knockout challenge wins as a character.
Mario Tennis: Ultra Smash is a sports game developed by Camelot Software Planning and released in 2015 for the Wii U.