Win the Mushroom Cup in 50cc to unlock Daisy
Win the Flower Cup in 50cc to unlock Baby Daisy
Win the Star Cup in 50cc to unlock Rosalina
Win the Special Cup in 50cc to unlock Dry Bowser
Win the Shell Cup in 100cc to unlock Toadette
Win the Banana Cup in 100cc to unlock King Boo
Win the Leaf Cup in 100cc to unlock Bowser Jr.
Win the Lightning Cup in 100cc to unlock Diddy Kong
Get at least 1 star on all 50cc Wii Grand Prix cups to unlock Funky Kong
Get at least 1 star on all 100cc Retro Grand Prix cups to unlock Rosalina
Win 150cc Special Cup to unlock Dry Bowser
Win 150cc Star Cup to unlock Daisy
Win 150cc Leaf Cup to unlock Birdo
Win 150cc Lightning Cup to unlock Bowser Jr.
Win 150cc Mushroom Cup to unlock Baby Daisy
Win 150cc Banana Cup to unlock Diddy Kong
Win 150cc Shell Cup to unlock Toadette
Win 150cc Flower Cup to unlock King Boo
Win 150cc All Cups to unlock Funky Kong
Win 150cc Mirror Special Cup to unlock Rosalina
Win 150cc Mirror Star Cup to unlock Dry Bowser
Win 150cc Mirror Leaf Cup to unlock Daisy
Win 150cc Mirror Lightning Cup to unlock Birdo
Win 150cc Mirror Mushroom Cup to unlock Baby Daisy
Win 150cc Mirror Banana Cup to unlock Diddy Kong
Win 150cc Mirror Shell Cup to unlock Toadette
Win 150cc Mirror Flower Cup to unlock King Boo
Win 150cc Mirror All Cups to unlock Funky Kong
Win 50cc Lightning Cup to unlock Dry Bones
Win 100cc Special Cup to unlock Mii Outfit A
Win 150cc Special Cup to unlock Mii Outfit B
Unlock 8 Expert Staff Ghost Data in Time Trials to unlock Expert Staff Ghosts
Unlock 4 Expert Staff Ghost Data in Time Trials to unlock Mii Outfit A
Unlock 8 Expert Staff Ghost Data in Time Trials to unlock Mii Outfit B