Size Categories in Goku Racing

Feather

 * Wurley

Small

 * Baby Mario
 * Baby Luigi
 * Baby Peach
 * Baby Daisy
 * Baby Yoshi
 * Baby Wario
 * Baby DK
 * Baby Waluigi
 * Baby Toad
 * The Annoying Orange
 * Salad Fingers
 * Barack Obama (after losing weight)
 * Pikachu
 * Jess
 * CPU
 * CFP
 * Toad
 * Toadette
 * Monkey
 * Bob-omb
 * Larry
 * Roy
 * Lemmy
 * Wendy O.
 * Morton Jr.
 * Squirtle
 * Bowser. Jr
 * Big Bad Bill
 * Cereal Bowl
 * Dr Rabbit
 * Ekans
 * Ludwig
 * Slowpoke
 * Nim-Nom
 * Charmy
 * Cream
 * Marine
 * Snivy
 * Mudkip

Kind of Small

 * Sticks
 * Poppu Harukaze
 * Alyson Koopastool
 * Tails
 * Roll Light

Medium

 * Squishy
 * Waluigi
 * Josh
 * Poppy
 * Wishy
 * Amy Rose
 * Blaze
 * Meowth
 * Jet The Hawk
 * Silver The Hedgehog
 * Sonic The Hedgehog
 * Shadow The Hedgehog
 * Ivysaur
 * Mario
 * Luigi
 * Onpu Segawa
 * Hazuki Fujiwara
 * Aiko Senoo
 * Doremi Harukaze
 * Hana-chan
 * Momoko Asuka
 * Wave The Swallow
 * Rouge
 * Espio
 * Knuckles
 * Neo Cortex
 * Jessie
 * James
 * Ash Ketchum

Kind of Large

 * George W. Bush
 * Flumpy
 * Storm The Albatross
 * Michael Jackson

Large

 * A random snapping turtle who still has it's legs
 * Blastoise
 * E-123 Omega
 * Captain Falcon
 * Vector
 * Wiggler
 * Goku
 * Vegeta
 * Doku
 * Degeta
 * Roku
 * Regeta
 * Homer Simpson
 * Wario
 * Big
 * Donkey Kong
 * Bowser
 * Charizard
 * Brawl Mario
 * Brawl Bowser
 * Brawl Donkey Kong

Too Large

 * Chubby Kid
 * Snorlax
 * Evil Guy
 * Eviler Guy
 * Fat Guy
 * Sumo Guy
 * Even eviler Guy
 * Even even eviler GUY
 * Evilest of all GUY
 * A Hippotamus
 * Numa Numa Guy
 * Cartoon Network Goku
 * Brawl Captain Falcon
 * Brawl Charizard
 * Madison Musgrove
 * Ashton McNeally
 * Cheyenne Miller
 * Shine Burnham
 * Daniel Koep and Heather Burant
 * Nelson Ramirez
 * Cameron Pearcey
 * Christian Harvey
 * Charles Warren
 * Titus Williams
 * Peter Kalu
 * Theodora Anderson
 * Lorena Tovar
 * Jarvis Kinder
 * Michael Jamison
 * Ambur Glover
 * Bryten Brockman
 * Devontae Burke
 * Victoria McKinney
 * Project M Wario
 * Project M Captain Falcon
 * Project M Donkey Kong
 * Project M Charizard
 * Adam Lyon
 * 7-year-old Brown-Haired Blue-Eyed Girls in Blue Jeans