Knuckles the Echidna

Knuckles the Echidna (ナックルズ・ザ・エキドゥナ) is an anthropomorphic red echidna from the Sonic the Hedgehog series. Knuckles is very strong and somewhat gullible. In his first appearance, he was tricked by Dr. Eggman into thinking that Sonic the Hedgehog was an enemy, but after discovering the truth, he became a friendly rival of Sonic. He is the guardian of the Master Emerald. In Worlds Collide, Dr. Wily and Eggman captured Knuckles and turned him into the Roboticized Master Knuckles Man. His Special Weapon was the Sharp Knuckle. Knuckles Man, alongside Tails Man, Rose Woman, and Shadow Man were sent to Mega Man's world to steal a Chaos Emerald from a bank. They were held off by Proto Man and Mega Man, although a blue blur interfered, buying the Roboticized Masters enough time to escape, and likewise resulting in Mega Man being tricked into fighting Sonic the Hedgehog. He and the others later delivered the Emerald to Wily and Eggman, and then were sent, alongside Blaze Woman and Silver Man, to fight Proto Man while Vector Man Charmy Man and Espio Man fought against Sonic, Mega Man, Rush, and Tails.