Mario Tennis Open is a sports game for the 3DS. It is the sixth Mario Tennis game. It was made by Camelot Software Planning. It has gyroscope support and multiplayer. It is also the first Mario game with GR codes. It is also the first Mario Tennis game without a story mode or RPG elements. It also includes Chance Shots. The characters are Mario, Luigi, Peach, Yoshi, Daisy, Boo, Bowser Jr., Diddy Kong, Donkey Kong, Waluigi, Wario, Bowser, Mii, Luma, Baby Mario, Metal Mario, Red Yoshi, Blue Yoshi, Light Blue Yoshi, Yellow Yoshi, Pink Yoshi, White Yoshi, Black Yoshi, Baby Peach, and Dry Bowser.