Since meeting with Sonic, Knuckles has had a strong rivalry with the blue hedgehog.
Overall, despite his temper and tough facade, Knuckles is a loyal friend, a true hero and a good-hearted guy, who is always willing to help out his friends in tight situations. This occurred even before Knuckles and Shade became allies. Also in Sonic Rush, when Blaze got away from Knuckles when he was going to hurt her, when she got away along with Cream, Cream told her, "Don't get this wrong Blaze, but Knuckles is actually a nice guy!" and in Sonic Rivals 2, Knuckles seems to be more caring to Rouge than she is to him, like when they got separated Knuckles said, "I hope Rouge is alright!" He is seen also coming to the rescue of Shade the Echidna in Sonic Chronicles: The Dark Brotherhood when she almost falls off Angel Island as a result of an explosion caused by Ix. When the two engaged in a fight, during which Rouge trips and falls into a lava pit, Knuckles saves her from being killed, and he even apologized to her if he hurt her. Knuckles profile in Sonic Generations.Despite being a silent loner, Knuckles is also heroic, brave and kind-hearted, as proven in Sonic Adventure 2 when Knuckles wanted to hunt Rouge down for stealing his Master Emerald. Though Knuckles's wild-temper has often been known to get him into trouble, such as in his interactions with Rouge the Bat, he has also learned to use it to his advantage by channeling it into fighting whoever might be threatening his friends or his home. Though he is cool and determined in battle, Knuckles has a very short temper and aggressive behaivor which can easily flare up when he thinks he has been insulted, wronged, tricked or is just confused, and he is very difficult to talk to or reason with when he is angry. However, he prefers to do things his own way, and is very stubborn and headstrong in his choices, which often causes him to clash with others' decisions, especially with Sonic. He is likewise strong-willed, remaining unshaken, unpersuaded and determined no matter what the situation he faces.
Knuckles is most of the time very serious and usually likes to be by himself. Whenever he is not focusing on his duty, Knuckles spends his time practicing his fighting skills, going treasure hunting or sometimes go hanging out with his friends Though Knuckles has been known to find other lifestyles appealing, he would never trade away his duties as he is far too devoted to his role as guardian of Angel Island and the Master Emerald. Despite this, however, Knuckles is often willing to go with Sonic and company on their adventures whenever his help is needed, or when he feels the Master Emerald and Angel Island will be safe. He prefers to stay close to the island's current emerald shrine to keep a watchful eye over everything on his home in order to maintain peace. Knuckles is fiercely loyal to his homeland, and does whatever is in his power to protect it and the Master Emerald. As such, he cares very little about what others thinks, which makes him bluntly honest and somewhat egotistical in the face of others. Due to having grown up on the isolated Angel Island and having been devoted to his sworn duty of protecting the Master Emerald for as long as he can remember, Knuckles has lived much of his life in seclusion and has become a rather antisocial, reclusive individual and a loner by nature. Like how Sonic embodies the wind, Knuckles embodies the mountain stern, unmovable and anchored to his duty. Knuckles is a coldly honest, independent, tough, somewhat gullible and short-tempered echidna with a one-track mind. He's been depicted in a black Dark Legion robe and, for Antoine and Bunnie's wedding, wore tribal echidna attire, tan with a green-and-grey trim and taller boots. As an incarnation of Enerjak he wore golden armor with blue fabric connecting the various pieces. He's also occasionally worn sunglasses and an air necklace. He possesses a brown hat with a star-design on the hatband, though he's rarely worn it. Like many characters in the comic, he initially was given light-blue eyes before SEGA established his eye color as purple.įor several issues, as a result of Chaos-related powers going awry, his fur and eyes were green. He wears green, yellow and red footwear with a metal "Lego" plate atop each shoe. He wears white mitt-like gloves and has two spiked knuckle-claws on each hand. Officially, he's slightly taller than Sonic. He bears a white crescent mark on his chest, a trait tied to his station as Guardian. Knuckles is a red echidna with purple eyes.