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Sega Sonic The Hedgehog Video Game Shadow Black Plush Stuffed Figure 10" Doll

Knuckles is a red anthropomorphic echidna, the only living descendant of a well-established clan of echidnas. For many years, his clan guarded a giant gemstone called the Master Emerald, which controls the Chaos Emeralds, objects central to the Sonic the Hedgehog game series. As such, Knuckles has spent most of his life atop a floating island called Angel Island, guarding the Emerald from harm. He has grown up fairly introverted as a result.
Knuckles has a personality, described as cool. However, he sometimes loses his composure and gets in fights with other characters, and is sometimes shy around girls. His favorite food is grapes. His relationship with Sonic is ambivalent: Knuckles enters the series as an antagonist of Sonic and later sees him as both a friend and a rival, while envying Sonic's adventurous lifestyle. He is depicted as somewhat gullible and very rash, especially when angered. He has often been tricked by Doctor Robotnik, but is stated in one game manual to have become more skeptical of him, possibly due to the multiple times of getting fooled by Robotnik.
While slower than Sonic, Knuckles is depicted as one of the series' strongest characters and a skilled martial artist: his brawny physique allows him to lift objects many times his size and weight, while his powerful fists enable him to smash through boulders. He can also glide long distances and can climb up walls using the spikes on his gloves. Unlike Sonic, Knuckles is able to swim. As is typical among Sonic characters, Knuckles can roll into a ball to attack enemies. He also has an empowered "super" form: using the Chaos Emeralds allows him to transform into Super Knuckles. Using the Super Emeralds allows him to transform into Hyper Knuckles.