Mario Tennis Aces are set to have free post-launch content for its players, the way this is going to come is in the form of new playable characters – Koopa Troopa will be arriving on August 1st while Blooper joins the roster in September.
However, if you are looking to unlock Koopa Troopa in advance then you can compete in an online tournament in July where you can earn points if you earn enough then you can unlock Koopa Troopa. There will also be a tournament in August to help players unlock Blooper early.
This is all just an incentive from Nintendo to get players to play online and compete against other players.
Mario Tennis Aces will be out on June 22nd for the Nintendo Switch. Down below are the new trailers for Koopa Troopa and Blooper.