Nintendo Co., Ltd. this week released Boom Boom to Mario Tennis Aces for the Nintendo Switch in Feb.
Between Feb. 1 to Feb. 28, owners who enter the in-game Online Tournament will receive Boom Boom, a Defensive player. The character will be available to all players after Mar. 1.
Mario Tennis Aces includes new skill and competitive gameplay. In addition, the title includes a brand new story mode for missions and boss battles.