Nintendo has revealed the September Participation Bonus in the Mario Tennis Aces September Online Tournament, which are classic Mario overalls (500 Participation Points) and classic Luigi overalls (1,000). The Co-op Challenge "Boo Hunt" is also back, with the Goal-Clear Bonus being a black Boo visor (1,500 Coins), black and pink Boo visor (5,000), and light-blue and green Boo visor (10,000).