Knuckles the Echidna

Knuckles makes an appearance in SSF and once again in SSF2. He is the rival and friend of Sonic. With his powerful knuckles and good speed, he'll be a good character for anyone, and a tough opponent.

Super Smash Flash
Knuckles is a starter character from the large Sonic series roster in SSF, he includes 5 different attacks:

Super Smash Flash 2
Knuckles reappers in this game, along many other Sonic characters. His availability is most likely starter.

Normal Ground Attacks

 * Neutral Attack: Punch, punch, downward punch, uppercut.
 * Down Tilt: Jumps forward and punches.
 * Down Smash: Punches the ground, creating a small shockwave.
 * Forward Tilt: Sonc Battle's Megaton Hook: Does a punch whle spinning around.
 * Forward Smash: Performs a slow punch; at the moment of impact, an explosion appears.
 * Up Tilt: Uppercuts with one hand.
 * Up Smash: Uppercuts with both hands.
 * Dash Attack: Leans back, then punches with both hands.

Aerial Attacks

 * Neutral Aerial: Pinches downward and spins in a full circle.
 * Forward Aerial: Punches both hands downward.
 * Backward Aerial: Punches behind him.
 * Upward Aerial: Does a fiery spinning uppercut.
 * Downward Aerial: Dives downward, spinning, and punches straight down with both fists while encircled by fire. Likely to be a Stall-Then-Fall.

Grab and Throws

 * Grab: Reaches out with both hands.
 * Pummel: Uppercuts.
 * Forward Throw: Punches forward with both hands.
 * Backward Throw: Backdrops the opponent.
 * Upward Throw: Smacks the opponent upward with both hands.
 * Downward Throw: Punches the opponent on the ground.

Misc.

 * Entrance: Uppercuts out of a hole.
 * Taunt: Does a series of punches and fist pumps.
 * Revival platform: Possibly Master Emerald like platform.
 * Wins: Moves his head up and down while performing his taunt.
 * Loses: Hits the floor.

Role in The Flash Of Shadows
Currently unknown.