Yes they do. By the way, they aren't related.
Sonic is a HEDGEHOG and Knuckles is an ECHIDNA!
sonic tails knuckles
There are various reasons why Knuckles and Sonic fight. Sometimes Dr. Robotnik, AKA "Eggman", tricks Knuckles into believing that he has turned good and that Sonic is in fact, the bad guy. When Knuckles first made his debut in Sonic the Hedgehog 3, Dr. Robotnik tricked Knuckles into thinking that Sonic came to the island to steal the emeralds. Near the end of the game, Dr. Robotnik turns on knuckles by stealing the emeralds for his new weapon which Sonic and Knuckles teamed up to destroy. Since then, Knuckles has been a valuable ally for Sonic, when the two don't disagree. Another reason Knuckles and Sonic fight is because of their personality differences. Sonic is cocky, arrogant, and free spirited; Knuckles is stern, hotheaded, and quick to anger. Sonic frequently catches Knuckles at the worst times like when Knuckles is being flirted with, with that in mind Sonic taunts Knuckles on for days like an immature child. This also eggs on fights.
yes and no. he is his friend after knuckles discovered sonic trying to help him save the master emerald from robotniks evilness. but before knuckles knew this he was trying to stop him.
You can only get Knuckles in Sonic 2 if you stack Sonic 2 and Sonic and Knuckles on the Genesis. Otherwise Knuckles cannot be played in the game.
Yes except in sonic 3 and knuckles, you can be knuckles. :)
this is easy sonic is really stronger then knuckles sonic using chaos contorl and finel color blaster sonic is very stronger then knuckles
Yes,but on the sonic & knuckles side,not sonic 3 side
Actually that's hyper knuckles that's pink, super knuckles is yellow like super sonic and super tails you see this is sonic heroes. super knuckles is also pink (i tried it).
No, Sonic Is Significantly Stronger Than Knuckles
You can play Sonic 3, or Sonic & Knuckles but unfortunately you cant play Sonic 3 & Knuckles on Sonic's Ultimate Genesis Collection.
Knuckles
he! this is easy sonic is very very very strongest then knuckles sonic using chaos contorl sonic is very strongest then knuckles