People: Baby Daisy: Get a "One Star" rank or better in all 50cc cups. Alternately, win 1,950 races.
Baby Luigi: Unlock eight Expert Staff Ghosts in Time Trials mode. Alternately, win 3,150 races.
Birdo: Play 16 different courses in Time Trials mode. Alternately, get 250 Wi-Fi wins or win 1,350 races.
Bowser Jr.: Get a "One Star" rank or better in all 100cc Retro Cups. Alternately, win 3,450 races.
Daisy: Win the 150cc Special Cup. Alternately, win 2,850 races.
Diddy Kong: Successfully complete all 50cc Retro Cups. Alternately, win 450 races.
Dry Bones: Win the 100cc Leaf Cup. Alternately, win 1,050 races.
Dry Bowser: Get a "One Star" rank or better in all 150ccWii Cups. Alternately, win 4,350 races.
Funky Kong: Unlock four Expert Staff Ghosts in Time Trials mode. Alternately, win 2,250 races.
King Boo: Win the 50cc Star Cup. Alternately, win 750 races.
Mii (Outfit A): Win the 100cc Special Cup. Alternately, win 1,650 races.
Mii (Outfit B): Unlock all 32 Expert Staff Ghosts in Time Trials mode. Alternately, win 5,100 races.
Rosalina: Get a "One Star" rank or better in the Wii Cup Series. Alternately, 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. Alternately, get 1,000 Wi-Fi wins or win 2,550 races.