Nintendo UK VS on Twitter: "Along with the online tournament this month, a new Shy Guy Co-Op Challenge is underway in #MarioTennis Aces! Clearing it will net you three new alternate colours
Nintendo of America on Twitter: "Birdo! Shy Guy! Koopa Paratroopa! Petey Piranha! This motley crew will all join the game as playable characters in #MarioTennis Aces. The free Ver. 2.0 update on
![Mario Tennis Aces update out now (version 2.1.0) - Doubles Class tournaments, new Co-op Challenge, much more Mario Tennis Aces update out now (version 2.1.0) - Doubles Class tournaments, new Co-op Challenge, much more](https://nintendoeverything.com/wp-content/uploads/mario-tennis-aces-1.jpg)