In MARIO TENNIS OPEN for Nintendo 3DS, you can use basic button controls just like in previous entries in the series, but with the addition of gyro sensor controls and Touch Screen - made possible by the Nintendo 3DS - allowing you to enjoy tennis with more depth than ever before. Play singles or multiplayer with up to four players in a variety of different modes. You can play with friends locally or online, or find other players in your area. Serve, volley, and smash your way up the leaderboard and see if you have what it takes to reach the top of the rankings. If you have friends nearby, you can play a multiplayer game with just one copy of the game via Nintendo 3DS Download Play! Choose from a variety of favorite Nintendo characters or use your Mii character for a personalized tennis experience. You can also customize your player of choice by earning coins and unlocking items from the game's shop. MARIO TENNIS OPEN utilizes StreetPass in new and exciting ways. Play a game against other players you meet on the go without even lifting a finger and see if you can win coins as a reward. It's a whole new game!