Knuckles the Echidna

Knuckles the Echidna is a character from the Sonic the Hedgehog franchise. He will be starring in the upcoming 51st episode of Death Battle, Donkey Kong VS Knuckles.

Background
The sole Echidna on Earth, Knuckles is the protector of the Master Emerald on Angel Island. He rarely leaves the island unless something big happens to the emerald or somewhere else.

He first met Dr. Eggman, and was manipulated by him that Sonic was after the Master Emerald, and needed his help. Knuckles fought against Sonic, but was soon able to realize his mistake and turned his attention to Eggman, the real bad guy. Knuckles would later become a strong ally to Sonic and his friends in later adventures.

One Minute Melee
Knuckles is set to appear as a combatant in One Minute Melee. His opponent is unknown but it could be speculated as Wario.

He was also seen in the One Minute Melee, Sonic vs Flash

Trivia

 * Knuckles the Echidna is the 6th Sonic character to get into Death Battle. The first five were Shadow the Hedgehog, Sonic the Hedgehog, Dr. Eggman, Metal Sonic and Tails the Fox.
 * Knuckles is the third Sega character to fight a Nintendo character