Knuckles

This is Knuckles the Echidna, he is strong echidna warrior from Angel Island. He protects a giant shiny green emerald. Later, he meets Eggman on the mushroom planet. Eggman tricks into thinking that Sonic is the bad guy. He soon realizes that Eggman has tricked him. Then joins "Team Sonic" to defeat him.. for now 🥊🔴