UPDATE: Nintendo of America shared more details on the online tourney and the English trailer.  Players can earn points based on their performance in matches to unlock up to five additional characters in the demo.  Offline practice option available.  Unlock Mario’s classic outfit in the full game by participating.

A Japanese Mario Tennis Aces video has confirmed the previously announced free pre-launch tournament while be live starting the weekend of June 1 and will run through June 3.  A new overview trailer was also shared which is embedded at the top of this post.

Only four characters will be available in this free pre-release version, they are Mario, Yoshi, Peach, and Bowser.  We will update with with more information if Nintendo of America shares details soon.

The full game is still on track to launch later that month on June 22 exclusively for Nintendo Switch.