Knuckles in Sonic 2
Knuckles in Pokemon Pinball!
Hyper Metal Sonic in Knuckles Chaotix!
Knuckles saying, "HOLD!" in Knuckles Chaotix
Knuckles gliding with Dr. Eggman and Metal Sonic hovering over
Knuckles in the air
Knuckles holding a skull!
Knuckles and Rouge
Knuckles and Rouge in space
Knuckles and Rouge at the safes on prison island
Knuckles near some rising wind
Knuckles finding a piece of the master emereld
Knuckles collecting rings
Eggman floating away with the master emereld
Sonic Knuckles and tails at ice cap