Mario Tennis Aces just hit shelves last week, with our review of the Nintendo mascot’s latest sports game calling it “a worthy successor to the N64 original.”

Now that fans have had time to get their hands on the game, Camelot has revealed which characters players can look forward to playing as in the months to come. In addition to the previously announced debuts of Koopa Troopa on August 1 and Blooper in September, the brief trailer below reveals that Diddy Kong, Birdo and Koopa Paratroopa will be making their way to Mario Tennis Aces this fall. While these characters will eventually be available for free for all players, those who participate in the game’s online tournaments will have an opportunity to unlock them sooner, which, despite being free for the next couple months, will be locked behind the Nintendo Switch Online paywall once that launches this September.

Mario Tennis Aces is available now on Switch.