Knuckles is one of the main characters of SonicWhacker55. He is mean, disrespectful, and loves to call Tails a fudgecake. He's the same as Shadow and hates Tails. Tails is the one that is always getting bullied all the time. They get into many fights, they are still rivals. They actually did a fight to see who would win, if Tails win, Knuckles has to stop bullying Tails and if Knuckles wins, Tails would leave the house in Tails vs. Knuckles.
Knuckles has red fur, black eyes, and red and yellow shoes. He also has a big, black nose. He wears white gloves.
He is greedy, selfish, and a bully, basically the opposite of Sonic and Tails. He is not nice and gets into bad situations. He is friends with Shadow and sometimes with Sonic.
Sonic doesn't like Knuckles behaviour and is always tired of Tails and Knuckles getting into a fight. Knuckles and Sonic are sometimes friends.
Tails is considered Knuckles' worst enemy in SonicWhacker55. He is often unbelievably jealous of Sonic and Knuckles being friends, although is tired of getting bullied and tortured by Knuckles but to no avail.
In SW55, Shadow is considered Knuckles' best friend, who often messes around Tails from Tails' Mistake 2 so they collaborate with each other.
Amy thinks Knuckles is helpful because he helped Amy find Sonic in Sonic the Hedgehog - Amy Rose, They don't really have anything in common.
Cream, thinks Knuckles is a meanie to Tails and the same thing like Amy, they have nothing in common.
Bugs Bunny hates Knuckles from that time when Knuckles ate Bugs Bunny's carrot from Sonic the Hedgehog and Looney Tunes.