During Nintendo's E3 2015 Direct presentation, the company revealed a new gameplay trailer for the next entry in the Mario Tennis series. This game will be called Ultra Smash, and it brings together the classic Mario Tennis gameplay, characters, and power-ups, but with the higher resolution graphics of the Wii U.

One of the new power-ups shown was the Mega Mushroom, which caused each player to grown in size (and seemingly strength) considerably.

The last entry in the series was .