Nintendo and Camelot have revealed the bonus for October if you compete in the Mario Tennis Aces Online Tournament.

If you participate, you'll be able to get a special cap for Chain Chomp. The colours include yellow (250 participation points), red (500) and green (1000). The Shy Guy Train Tussle is also making a return. The goal-clear bonus allows you to unlock a blue (2,500 coins), green (10,000) and yellow Shy Guy (20,000). Take a look below:

Mario Tennis Aces might have been a little light on content when it was released last year, but since then it's received a number of free updates adding new characters, new modes and even a new opening cinematic.

Will you be participating in this month's tournament? Leave a comment below.