Miles "Tails" Prower is Sonic the Hedgehog's sidekick and best friend. He is an 8-year-old, orange fox with two tails, which gives him the ability to (temporarily) fly (hence his nickname). His real name is a pun on 'miles per hour'.

Knuckles is a red anthropomorphic urchin with purple eyes. He always wears boxing gloves with points on them.

Knuckles is the last of a tribe of echidnas. He leads a secluded existence on Angel Island, where he has been guarding the Master Emerald, who