Unlock the following characters by performing the corresponding tasks:
CHARACTER - HOW TO UNLOCK Baby Daisy - Get a "One Star" rank or better in all 50cc cups or win 1,950 races. Baby Luigi - Unlock eight Expert Staff Ghosts in Time Trials mode or win 3,150 races. Birdo - Play 16 different courses in Time Trials mode or get 250 Wi-Fi wins or win 1,350 races. Bowser Jr. - Get a "One Star" rank or better in all 100cc Retro Cups or win 3,450 races. Daisy - Win the 150cc Special Cup or win 2,850 races. Diddy Kong - Successfully complete all 50cc Retro Cups or win 450 races. Dry Bones - Win the 100cc Leaf Cup or win 1,050 races. Dry Bowser - Get a "One Star" rank or better in all 150cc Wii Cups or win 4,350 races. Funky Kong - Unlock four Expert Staff Ghosts in Time Trials mode or win 2,250 races. King Boo - Win the 50cc Star Cup or win 750 races. Mii (Outfit A) - Win the 100cc Special Cup or win 1,650 races. Mii (Outfit B) - Unlock all 32 Expert Staff Ghosts in Time Trials mode or win 5,100 races. Rosalina - Get a "One Star" rank or better in the Wii Cup Series or have a saved game file from Super Mario Galaxy and win 50 Grand Prix races; or win 4,950 races. Toadette - Play on all 32 courses in Time Trials mode or get 1,000 Wi-Fi wins or win 2,550 races.