Knuckles the Echidna

Knuckles the echidna
Born from the echdina tribe, Knuckles is the guardian of the master emerald and resides on Angel Island, he is a tough and arrogant rival to Sonic but helps him when it comes to saving the world. Knuckles usually relies on his strength in combat and is often grumpy if he loses, his main goal is to protect the master emerald.