Mario Tennis Open is a sports game developed by Camelot Software Planning and released on Nintendo 3DS. Continue Reading → Jump to a section: Home Releases Credits Characters List Overview Walkthrough Achievements Cheats CharactersView all → Mario Luigi Princess Peach Yoshi Mario Tennis Open Brainwaves View all → Discussion Article Thought Review 100 Share Mario Tennis Open with others Games You May Like Super Smash Bros. Brawl Mario Kart Wii Super Mario Bros. Wii Sports Mario Tennis Open Releases Credits Characters List Overview Walkthrough Achievements Cheats Updates