One of the first games to use Nintendos Wii MotionPlus add-on, Grand Slam Tennis gives players the added depth of precise motion control on the tennis court. Although Wii is ideal for gesture based gameplay in sports titles such as Wii Sports, pulling off precise and subtle movements can sometimes be a challenge. Thanks to Nintendos Wii MotionPlus an add-on that simply slots into the bottom of a players Wii Remote its responsiveness can now be greatly improved in select titles. In Grand Slam Tennis, swings and movements of the racket are now shown almost precisely, allowing for far more accurate tennis matches.
This is £3.91 cheaper than buying it from Tesco Entertainment WITHOUT the add on: http://www.tescoentertainment.com/store/games/-grand-slam-tennis/8:161298/
Don't forget 8% quidco..