Doraemon/Sonic

Version 1 (with 1998-present cast)

 * Nobita as Tails
 * Doraemon as Sonic
 * Shizuka as Amy Rose
 * Suneo as Knuckles
 * Dorami as Cream
 * Nobisuke as Dr. Eggman

Version 2 (with 1993-1998 cast)

 * Nobita as Sonic
 * Doraemon as Tails
 * Shizuka as Sally
 * Suneo as Knuckles (from Sonic Underground)
 * Dorami as Bunnie
 * Nobisuke as Dr. Robotnik