Editing Knuckles (P+)

|image = {{tabber|title1=Default|content1=[[File:Project_+_Knuckles.png|250px]]|title2=Jet Set Radio|content2=[[File:PPlus_Knuckles Jet Set.png|250px]]|title3=Treasure Hunter|content3=[[File:PPlus_Knuckles Treasure Hunter.png|250px]]}}

|altcostume = Jet Set Radio, Treasure Hunter

One of few characters originally planned for ''[[Project M]]'', all plans came to a halt after ''Project M'' ceased its own development following version 3.6. Knuckles is the first [[File_replacement#Clone_Engine|clone engine character]] to hail from a third party universe, the third clone engine character overall (built using {{PM|Sonic}} as a base), and the only newcomer to appear beyond the plans of ''Project M''.

{{iw|wikipedia|Dan Green|voice actor}}, Knuckle's voice actor between 2003-2010, voices the character in ''Project+'', with his portrayals being re-purposed from various ''Sonic the Hedgehog'' media existing around the same time as ''Super Smash Bros. Brawl'', beginning from ''{{iw|wikipedia|Sonic X}}'' to ''{{iw|wikipedia|Sonic and Sega All-Stars Racing}}''.

| rowspan=3 | || 3% || rowspan=3 | Two punches, followed by a neutral infinite.

| 4%

| 1% (loop)

| || 12% || A forward punch that can be angled.

| || 11% || An uppercut that sends opponents upwards. Similar to Knuckles' unused Uppercut attack from Sonic Adventure.

| || 10% || A sweeping punch that sends opponents upwards. Has a sweetspot at the tip of his knuckles.

| || 12% || Performs a running donkey kick from Sonic the Fighters, similar to Sonic's F Tilt.

| Deep Impact || {{ChargedSmashDmgSSBM|12}} (fist), {{ChargedSmashDmgSSBM|19}} (explosion) || A charged punch forwards. A small explosion appears in front of his fist; this is the sweetspot of the move. Taken directly from Sonic Battle.

| Rising Super Uppercut || {{ChargedSmashDmgSSBM|17}} || An uppercut engulfed in flames. Taken directly from Sonic Advance.

| Meteor Eruption || {{ChargedSmashDmgSSBM|12}}, 1% (charging hitbox) || Knuckles spins into the ground, then launches out to hit opponents. If done on a soft platform while holding down on the control stick, and charged for too long, Knuckles will fall through the platform. Has a hitbox on the ball while charging. Based off the attack from Sonic Battle.

| || 12% (clean), 8% (late) || A [[sex kick]].

| || 13% (early), 15% (late) ||A downward, fist enlarging punch that functions similarly to Mario's, having a horizontal knockback angle on the early hit and having a [[meteor smash]] hitbox on the late hitbox.

| || 15% (early), 8% (late) || Jabs behind himself with his elbow. Based off his Quick Reverse Back Attack from Sonic Advance 2. Has [[sex kick]] properties.

| || 11% || A headbutt attack from Sonic the Fighters that acts similarly to Donkey Kong's.

| Meteor Punch|| 11% || Punches downwards with both of his fists, taken directly from Sonic Battle. Has a meteor smash effect.

| || - || Knuckles reaches out with his left hand.

| || 3% || Punches with his right hand.

| || 6% (hit 1), 10% (throw) || Headbutts the opponent.

| || 10% || Spins his opponent round in a circular motion and throws them.

| || 2% (hit 1), 10% (throw) || Knuckles jumps into the air with his opponent and slams them into the ground. Similar to Volcanic Dunk from Sonic Heroes.

| || 1% (hits 1-4), 10% (throw) || Rapidly punches his opponent downward. Similar to his digging animation.

| || 6% ||  

| || 5% ||  

| || 8% ||  

| || 11% ||  

| Dig/Drill Claw|| 20% (Grounded uppercut, clean), 11% (Grounded uppcercut, late)<br>1% (aerial) || ''Grounded'': Knuckles will dig into the ground for some frames, then enter it. The player can move underground for a short time, which can be extended by holding down the B button, before unearthing with an uppercut, akin to his introduction in Sonic the Hedgehog 3. Can be used to become totally invincible, as well as get around projectiles. The uppercut has a sourspot on the late hit.<br/>''Aerial'': Based off of the Drill Claw move in ''Sonic Adventure 2''. Knuckles will spiral downwards in a stall-then-fall move. If the B button is held down while landing, he will dig into the ground. From there, it functions like the grounded version.

| Diving Punch/Glide || 16%, 5% (landing hitbox) || ''Grounded'': Knuckles jumps up and performs a diving punch, similar to the Stone Breaker Punch from Sonic the Hedgehog (2006).<br>''Aerial'': Glides around the air, can cling to and climb up and down walls. If the opponent interrupts your glide or if you press Z while gliding, Knuckles will perform an Aerial version of the Diving Punch instead of the Glide. The glide can be directly cancelled into aerials.

| Spring Jump || 4% (spring) || Bounces into the air off of a yellow spring. Compared to Sonic's version of the move, Knuckles does not go as high, as yellow springs in the Sonic series give you less height than red springs, giving it weaker potential as both a recovery option and method of gaining height for juggling.  It also has an upwards launch angle on the spring projectile, giving it much better combo potential. Otherwise, the same as Sonic's.

| Spin Charge || 7-10% (dash), 8% (jump) || Functions in a similar manner to Sonic's own version of the move, except Knuckles' does more damage at the cost of speed and lacks a charging hitbox

| Super Knuckles || 18% (startup), 16% (ram) || Transforms into Super Knuckles using the Chaos Emeralds. Functions almost identically to Super Sonic.

*'''Down taunt''': Knuckles does push-ups for as long as the taunt button is held. Taken from his idle animation in ''Sonic Advance 3''.

''See also: [[:Category:Knuckles players (PM)]]''

*{{Sm|Samantha|USA}} - Highest ranked Knuckles on [[PMRank 2023]] at 28th. Placed top 8 at {{Trn|Undertow 2023}} and {{Trn|Invincible VII}}.

*{{Sm|Yono|USA}} - Ranked 25th on the [[2022 PMRank]] and a notable inactive on [[PMRank 2023]]. Placed 5th at {{Trn|Undertow}}.

==Role in [[The Subspace Emissary]]==

Knuckles is automatically unlocked after finishing the main story.

Knuckles's trophy can be obtained by clearing {{SSBB|Classic Mode}} and [[All-Star]] mode.

'''Secret costumes:'''

 

[[File:Knuckles Z P+.png|160px]] [[File:Knuckles R_P+.png|160px]]

 

 

'''Z-Secret Costume:''' Metal Knuckles from ''Sonic R'' and ''Sonic Superstars''

**When accessing [[replay]]s in ''Brawl'', Knuckles shows up as an iconless character under the name "Headrobo".

*Knuckles is currently the only character in ''Project+'' to not be playable in an official ''Smash'' game, though he has appeared since ''Brawl'' in several non-playable roles.