Metal Sonic

"There is only one Sonic..."

Metal Sonic (メタルソニック) is the evil "robotic counterpart" of Sonic the Hedgehog, created by Dr. Ivo "Eggman" Robotnik. As well as resembling Sonic, he can also perform many of Sonic's moves, including his homing attack. Metal Sonic is always on the dark side throughout the series except Sonic Rivals 2, where he takes a protagonistic role as a playable character.

Becoming A Popular Villain
The first appearance of Metal Sonic was in Sonic CD for the Sega CD console. In this game, he is under the control of Dr. Robotnik and is sent back in time to change the past so that Dr. Robotnik can rule the future. Later, he kidnaps Amy Rose, who had been following Sonic. In the Stardust Speedway Zone, he challenges Sonic to a race rather than a traditional boss battle, with Robotnik on their trail and chasing Sonic with a death laser. Periodically, he uses one of two moves - if Sonic is ahead of him, he will explosively accelerate with the V. Max Overdrive Attack, which will make him go four times as fast temporarily and attempt to blast through Sonic. If Sonic is behind him, he'll instead use the Ring Spark Field, which is an electric attack that has a wider range but requires him to decelerate.

If Sonic does not reach the goal in time, the door will close as Robotnik kills Sonic with the death laser, and the robotic duplicate looks on and mockingly mimics Sonic's smug finger wave. If Sonic succeeds, the door will close in front of Metal Sonic, causing him to crash headlong into it and humorously fall off the screen in the "lose a life" position as Robotnik retreats, allowing Sonic to finally rescue Amy and proceed to the last zone. In the Japanese manual, it was claimed that he had all the abilities of the original Sonic and more, but in-game he does not demonstrate this.

Destroying A Zone
Metal Sonic's second major appearance was in Knuckles' Chaotix, where he attempts to absorb the Chaos Rings' powers to wreak havoc in the Newtrogic High Zone. Once again, he has an unorthodox boss battle in which the goal is to stop his machine so it lands on a "damage" mark. After being defeated by the Chaotix, he is seen leaving with Robotnik. This occasion also featured his first supposed power up; a massive, red version of himself called Metal Sonic Kai appears right afterwards. In the bad ending, this monstrosity destroys the island.

Getting Into Racing
Metal Sonic is an unlockable, playable character in Sonic R. To unlock him, the player must find the Sonic Tokens in the Resort Island course, finish the race, and then beat him in a one-on-one race against him. Here, the chrome copy plays like an alternate version of Sonic, being faster and slightly harder to steer, but is not quite as fast as Super Sonic. Unlike Sonic, he can't double jump, but thanks to his boosters, can run across water for a short time, which the normal Sonic is incapable of doing.

Becoming Cheap
Metal Sonic appears as the penultimate boss character in Sonic the Fighters. In this appearance, he demonstrates not only a powerful laser-type move that emits from the hole in his body, but also borrows certain moves from other playable characters. Another version, called Mecha Sonic Model No. 29 (or "Rocket Metal"), appears in the intro.

Finally a Final Foe
Metal Sonic appears as one of the surprise final bosses Sonic or Tails must face in Sonic Triple Trouble. Unlike Sonic CD, it is not a race; it is an actual battle, though Metal Sonic uses his flight and evasion to attack. After being defeated, he wanders off and isn't seen for the rest of the game.

Modern Cameo and Finally Playable
Metal Sonic had a cameo in Sonic Adventure , inside a tube in one of Dr. Robotnik's hideouts along with a second model of Silver Sonic from Sonic the Hedgehog 2.

He then appeared as a gift for getting all of the Emblems in the GameCube remake of Sonic Adventure. One could then play as Metal Sonic in Sonic's stages. Metal Sonic essentially acted as an alternate skin for Sonic; in fact, his playable model is very much made in Sonic's image, and is very different from the Metal Sonic that can be seen in the Mystic Ruins Base.

Into Multiplayer
His next appearance was as an unlockable multiplayer character in Sonic Adventure 2, and subsequently a standard multiplayer character in the GameCube remake, Sonic Adventure 2: Battle. In the Dreamcast version, he finally demonstrated the ability to act as Sonic, though his moves this time were a carbon copy of Shadow's. Hence, he could perform Chaos Control using ring energy. He would learn a stronger version of this technique in Sonic Heroes. In the GameCube version, each 2P character is made more unique, thus he has his own attributes. For one, he can grind faster than Sonic, Shadow, and Amy. He can also project a Black Shield, which is similar to the Ring Spark Field he had in Sonic CD. The drawback is that he has no longer has any other special attacks of his own, though the Black Shield can protect against the special attacks of his opponents, such as Sonic Wind or Chaos Spear, but it can't protect him from Time Stop and Chaos Control. Metal Sonic cannot maneuver while using the Black Shield, but he does maintain his momentum and can exceed max speed when using it before landing on a dash panel.

Tracking Down 12 Heroes
He appeared as the main antagonist in Sonic Heroes. After turning against Doctor Eggman and assuming his disguise, he copies the physical data (and/or abilities) of Sonic, Shadow, Froggy and Chocola to assume his ultimate form, Metal Madness, and later Metal Overlord. This not only increased Metal Sonic's power, but gave him shape-shifting abilities and a new look (a cape, elf-like shoes and longer spines on his head), dubbed Neo Metal Sonic. He manages to achieve this through the use of Chocola, since Chao have a connection to Chaos, the water god of destruction from Sonic Adventure, and Froggy, who periodically had Chaos' tail in Sonic Adventure. In his Metal Overlord form, he transforms into a mechanical dragon-like entity, with one eye over the other, strangely. After he is defeated by Team Super Sonic in his Metal Overlord form, he reverts to his original form. Sonic then challenges Metal Sonic to a future rematch and races away. Metal Sonic then passes out cold, he is last seen being lifted off the ground by Omega, who exchanges a glance with Shadow. What they both have in mind for the metallic hedgehog is never told. At some point, Eggman re-obtains him and reprograms him to be obedient. Strangely, Metal Sonic did not appear in the following game, Shadow the Hedgehog, and was not even mentioned in it, despite the game being a sort of "continuation" of Heroes.

Reprogrammed
Metal Sonic appears seemingly reprogrammed by Eggman Nega to serve him and stop Sonic, Knuckles, Shadow and Silver from stopping him in Sonic Rivals. Metal Sonic is also playable and can be unlocked by either completing story mode with every character, or by collecting the Metal Madness, Metal Overlord, and Neo Metal Sonic cards. Metal Sonic's signature move is called "Copy Cat" where he uses his opponent's signature move. He also defends Eggman Nega's Flagship.

Friend or Foe
Metal Sonic returns in Sonic Rivals 2, this time he is playable from the start. Reprogrammed by Dr. Eggman, Metal Sonic appears as a mindless servant, unable to talk (save for various mechanical noises); however Eggman can talk through Metal via a communicator. Despite not being able to talk, Metal can still hear and follow orders. Metal is sent out by Eggman and teams up with Shadow to stop Eggman Nega from releasing the Ifrit, a destructive monster from an alternate dimension. The cutscenes involving him occasionally glimpse into his thought process, showing he's capable of prioritizing goals. During the game, it is revealed that he is powered by a Chaos Emerald. Eggman Nega also makes his own version of Metal Sonic, Metal Sonic 3.0.

After the teams defeated the Ifrit, everyone escaped through the portal except Shadow, Metal Sonic, Eggman Nega, and presumably Metal Sonic 3.0. However, Shadow and Metal Sonic used the Chaos Emerald inside Metal Sonic to warp out of the Ifrit's dimension with Chaos Control, leaving Eggman Nega trapped inside.

This is the only game where he plays a heroic role, however, this is because he is working for Eggman, who at the time considers Eggman Nega and the Ifrit a bigger threat to him than Sonic, and likely returns to his evil ways when Eggman does.

Return of the Racing Robot
Metal Sonic is a playable character and the mastermind of Story Mode in Sonic Free Riders. He disguised himself as a robot named E-10000B and joined Shadow and Rouge as a Team Dark member tricking them into believe he wanted to help them win the Grand Prix while he actually wanted to copy the other teams' abilities. Eventually, he reveals himself (much to Eggman's surprise, who didn't know Metal Sonic had betrayed him again) and challenges Sonic to a race to prove he is stronger than him. Sonic manages to beat Metal Sonic, who in turn runs away, probably planning up his next scheme since he is now free of Eggman's control.

Destroying Two Sonics
Metal Sonic appears as a rival boss in Sonic Generations. He only appears as his Classic self, according to his offical artwork.

Classic Sonic finds him in the Hub World as the robot challenges him to a race for a Chaos Emerald. They race in Stardust Speedway, just they did back in Sonic CD. He regains the V. Max Overdrive Attack to gain bursts of speed and the chance to attack his non-mechanical namesake, as well as blasting through the streetlamps on either side of the road for them to land on Sonic. After these attemps, he slows down as he has put too much power into his attacks and shortcircuits, needing a moment to recharge, giving Sonic the chance to strike him onto the road. After a certain number of hits, Sonic finishes Metal Sonic off by kicking him at the sky (Or a tunnel depending on where you are.) with the robotic doppelganger exploding.

For the 3DS, Metal Sonic will be the boss battle of Casino Night.

The Racing Robot
Metal Sonic appeared as a playable character in Sonic Drift 2. He is the only newcomer that was around but not included in the original Sonic Drift.

In a Picture
He appears on the box art and the final "Congratulations" image of Sonic Gems Collection. He is also in the games Sonic CD, Sonic R, Sonic Drift 2, Sonic Triple Trouble, and Sonic The Fighters.

Playing Pinball
Metal Sonic appears as an opponent in the Story Mode of Sonic Pinball Party.

As a Sticker
Metal Sonic appears as one of the collectible Stickers in Super Smash Bros. Brawl.

Making Another Cameo
In the Scrap Brain Zone court in Sega Superstars Tennis, Metal Sonic is standing on the side, spectating the match.

Attempting at the Olympics
Metal Sonic is one of 4 new playable characters in the Mario & Sonic's Olympic series. He is a speed type and rivals with another new character, Bowser Jr. In the DS Adventure Tour, he is one of the major antagonists joining Bowser and Eggman's side trying to stop Mario and Sonic from rescuing the Snow Spirits.

As seen in the trailer, it was confirmed that Metal Sonic will be in the game as a playable character in Mario & Sonic at the London 2012 Olympic Games.

Back in Racing
Metal Sonic is the first official downloadable character in Sonic & SEGA All-Stars Racing (who isn't an alternate version of an existing character).

As a Silhouette
Although not featured or seen during the games stages, Metal Sonic's silhouette can be seen after the credits if the player manages to collect all 7 Chaos Emeralds in Sonic the Hedgehog 4: Episode I. He is likely to make an appearance in Episode II.

Other Sonic Robots
''Note - Some early material refers to Metal Sonic as Mecha Sonic. This has long since been phased out.''

Another robot often confused with Metal Sonic is the Sonic robot from Sonic the Hedgehog 2, called Mecha Sonic in Japan ("Mecha" is a Japanese word meaning "Machine" or "mechanical") and Silver Sonic in the western comics. There have been much confusion about whether the name "Mecha Sonic" really is an official name or not, but it was in fact mentioned in both the original Japanese Sonic the Hedgehog 2 manual and the Japanese version of Sonic Jam. This presumed prototype did not have Metal's painted blue color and was also very clunky compared to the sleeker and generally more Sonic-like Metal Sonic. It is destroyed the first time Sonic fights him.

Later on in Sonic & Knuckles, another Sonic robot appeared and attacked both Sonic and Knuckles. It too was called "Mecha Sonic" in the Japanese version of Sonic Jam, but isn't referred to at all in American manuals. Against Sonic and Tails, it appeared three times in Sky Sanctuary Zone - twice in machines Dr. Eggman had used in Sonic the Hedgehog (Green Hill Zone Act 3) and Sonic the Hedgehog 2 (Metropolis Zone Act 3) and once in a one-on-one fight. Against Knuckles it fought one-on-one, as in the final fight with Sonic and Tails, but in the second phase of the battle he used the Master Emerald to go Super (much like Sonic can go Super and become Super Sonic) for brief periods of time. In the end it is destroyed by Knuckles.

Another robot, unnamed in the game but called Silver Sonic II in the Archie Comics, appeared in a stasis tube in Sonic Adventure.

Whether these "Mecha" Sonics really are different robots, or if they are in fact one and the same that gets rebuilt whenever he is destroyed (like Metal Sonic) is a source of much debate among fans, as there is no official material that states anything about this.

Mecha Sonic returned to his 16-bit Sonic the Hedgehog 2 incarnation in Sonic the Hedgehog Pocket Adventure as the boss of Aerobase Zone. It is almost identical to its 16-bit counterpart except it has the added ability to dash backwards, like it did in Sonic & Knuckles.

In Sonic Rivals 2, Metal Sonic finds himself a new rival: Metal Sonic Version 3.0, Eggman Nega's personal copy of Metal Sonic. Metal Sonic has an unlockable costume based on him called "Mach 3.0". Metal Sonic Version 3.0 looks just like the real Metal Sonic, but is colored black and yellow, similar to Gemerl.

Personality
Metal Sonic is aggressive, power hungry and very cold hearted. For a long time he has acted more or less as Eggman's slave, but after turning against his master in Sonic Heroes it became clear he is actually a very controlling person, who views himself as superior to others and wishes to rule over them. He is also completely obsessed with the idea that he is superior to Sonic in every way, and his ultimate desire above all else is proving to the real Sonic that he is better than him, should it be in fighting or just racing, and eventually defeat Sonic once and for all, since it is for this reason that he was created.

It was this desire to defeat Sonic that eventually drove Metal Sonic to rebel in Sonic Heroes, as he claimed this was the reason that he took Eggmans position and sought out the data from the others to become Metal Overlord: So that he could finally defeat Sonic. In Sonic Heroes he even goes as far as calling Sonic "my loathsome copy", as well as desperately shouting "I am the real Sonic!" when he is defeated by Team Super Sonic. He also says "Sonic, I was created for the sole purpose of destroying you", near the middle of the fight, raising the question as to how Metal Sonic can both believe himself to be the real Sonic and at the same time acknowledge his existence as a mechanical copy of Sonic. This suggests that Metal Sonic's obsession with the real Sonic, and the belief that he is better than him, drove him insane in the process. It can be thought, however, that Metal Sonic thinks that even though he was created, he believes he's the real Sonic.

Metal Sonic gained some independence in Sonic Heroes, which let to his rebellion against his creator, but that part of him were removed when Dr. Eggman restored him to his robotic slave after these events. He seemenly regained it, however, as seen in Sonic Free Riders when he goes inside Team Dark's new robot Power Member E-10000B, even without Eggman knowing it and stealing the data Eggman intended to get, for his own use.

Outer Armor
Strength Enhanced Navy Blue Metal Tektite.

Main Computer
Artificial Intelligence ROBOTNIK Custom Chip.

Internal CPU has a conversation system capable of high mathematical logic enactment. At the slightest sign of danger, the neuron connections simultaneously inform each section of the body to correspond. In short, this allows him to react quickly to certain situations.

Sub Computer
The power control system is governed by the Neo Super FX DSP Chip (which has a 5 link system connecting to each section of the body). The TV picture imaging compensation unit is the Next Risk Chip Series 3 Model (each eye has an 8 link system utilizing RGB imaging).

Main Engine
255 cc, 4 Valve Organ Fusion Engine

Maximum Output: 55ps/6800rpm

Maximum Torque: 7.54 kg-m/4000rpm

Secondary Engine
Tesla Power Coil, which produces electricity by means of electro-magnetic induction Maximum Output: 256kW

Note: In Sonic Rivals 2, Metal Sonic is discovered to have a Chaos Emerald stored it inside himself, either for use as a secondary power supply, or as a hiding place to keep it from being discovered.

Abilities
Being a robotic clone of Sonic, Metal Sonic has access to many of Sonic's powers and abilities. He can utilize the Spin Dash (albeit a far more deadly circular saw variation) and the Homing Attack, and can also jump higher and farther than Sonic, and match or even exceed his speed; though many games actually depict Metal Sonic as being faster than Sonic, it is countered by his poor traction and braking abilities, as well as the possibility that Sonic is "playing" with him.

He can achieve 4 times the accelerating speed of "early" Sonic when the circuits are overloaded. (Metal Sonic was possibly created before Robotnik knew about Sonic's Spindash and Super Peelout techniques.) When the energy overloads the circuitry, blue-white sparks spout from Metal Sonic. The reaction is called "V. Maximum Overdrive Attack" and its power can penetrate any substance.

However, the V. Maximum Overdrive Attack cannot be sustained because of its unfavorable cost performance and potential to destroy Metal Sonic himself. In addition, Metal Sonic can also use his radiation attack called Ring Spark Field, but this also has its drawbacks. This attack affects speed, since electric power is released to the outside.

In addition to Sonic's abilities, Metal has numerous personal capabilities. He can fire laser blasts from the cannon in his chest, fly by utilizing the rocket in his back, stretch his arms and legs to great lengths and strike from a distance, generate powerful electricity from his body, and Metal Sonic can generate a diamond-shaped force field (dubbed the "Black Shield") to protect himself.

His most powerful and impressive ability is that he can scan other characters, much like Emerl, copy their life data into himself, and immediately and flawlessly replicate not only their abilities, but also form himself to look and sound exactly like them (this is how he tricked everyone into believing he was Eggman in Sonic Heroes and also the reason Team Rose believed Sonic to have Froggy and Chocola with him in that same game). His acquired abilities and traits are listed below:

Using the data he acquired from Sonic, Shadow, and Chaos, as well as parts of Eggman's other machines, he is able to transform into Metal Madness, a superpowerful version of himself resembling a merge of Metal Sonic Kai from Knuckles Chaotix and Perfect Chaos with a grenade launcher and flamethrower, and then into Metal Overlord, where he gains wings in addition to the other parts. Eggman states that he is so powerful in this state that they have a slim chance of beating him, even with all seven Chaos Emeralds. In fact, he was invincible in this form, much like Super Sonic and team.
 * Chaos Control from Shadow and Sonic
 * Super-strength from Knuckles,Vector, Omega and Big
 * Speed from Sonic, Amy, Espio, and Shadow
 * Strategic planning from Eggman (maintaining and deploying Eggman's army and fleet)
 * A strong sense of freedom (evidenced by his turning on Dr. Eggman in Sonic Heroes) and identity (claiming to be the real Sonic) from Sonic himself (and possibly Shadow)

Sonic the Comic
In the United Kingdom's official Sonic publication, Sonic the Comic, "Metal Sonic" was relegated to the character's title, and Sonic's robot double was redubbed with the name of "Metallix" (hence, he was "Metallix, the Metal Sonic").

Metallix first appeared in the magazine's adaptation of Sonic CD, in which it was destroyed by Sonic. However, it was later revealed that this first Metallix was merely one of a vast brotherhood of identical robots, known collectively as the Brotherhood of Metallix. Ruled by a giant red-and-gold Emperor Metallix, the Brotherhood captured the Omni-Viewer, allowing them to travel back in time, and erase Doctor Robotnik from history. Since it had been Robotnik's assistant Grimer who built the Metallix robots, and Robotnik had contributed only a self-destruct mechanism, the Brotherhood was able to conquer Mobius, leaving Sonic in the unenviable position of having to travel back in time and ensure that Robotnik existed. With the time line back in place, Sonic was forced to ally with Robotnik to defeat the Brotherhood of Metallix once and for all.

Sonic the Hedgehog Archie Comic
Metal Sonic first appeared in issue #25, the Sonic CD adaptation, in which he was incorrectly named Mecha Sonic. He raced Sonic as part of one of Robotnik's traps, but was destroyed at the end of the issue.

Metal Sonic returned in the adaptation of the game Knuckles' Chaotix. He was transformed into a giant red version of himself by a "Power Gem," but was destroyed by a similarly empowered Knuckles.

Metal Sonic's next appearance was in a two-part storyline in issues #86 and 87. He had rebuilt himself by the power of the Power Gem embedded in him, and boasted improved powers and a new design. He captured Tails while he was gathering firewood in the forest in which the Freedom Fighters were stranded. Metal Sonic confronted Sonic, then made him race for his friend's life to the top of the soon to erupt Mt. Mobius volcano, where Tails was tied. Despite Metal Sonic's attacks along the way, Sonic made it to the summit of Mt. Mobius just as the lava began to rise. Though it seemed like they were doomed, Sonic and Tails refused to abandon one another, showing Metal Sonic that there was more to life than power. Metal Sonic held back the lava for them and Sonic and Tails managed to escape, but Metal Sonic was destroyed in the effort. (This is similar to the Sonic OVA where Metal Sonic is destroyed at the end by lava)

A year later, Metal Sonic was re-created from scratch by Eggman as part of a storyline involving a 3-way battle between himself, Shadow, and Sonic.

At one point, he was teleported to other worlds, along with Shadow, and as the two faced off, they meet the characters from Sonic Rush, Blaze the Cat and Marine the Raccoon, and Shadow and Blaze, with some help from Marine, ultimately join forces and destroy Metal Sonic.

Animation
Metal Sonic also starred in the OVA as Sonic's main rival. In the anime, they had a mind link and were able to hear each other's thoughts. He's depicted being more powerful then Sonic in this incarnation, besting him whenever they fought. Near the end of the movie, Tails reprogrammed him to be on Sonic's side, but Metal was destroyed soon after.

The personality of this Metal Sonic is slightly different than his game counterpart. He seems to be rather sane and acts rather solo than compared with himself in Sonic Heroes. Nearing the end, he falls into magma after an epic battle with Sonic. Sonic attempts to save him, but Metal does not accept, replying "there is only one Sonic". He is then destroyed in the magma, and this implies that Metal, though he was programmed for evil and reprogrammed by Tails, thinks on his own. It was also stated by Tails that Metal Sonic received Sonic's personality traits and memories when Sonic's data was transferred into Metal Sonic's.

Metal Sonic has never made an appearance in any of the Sonic television series. However, there was a robotic Sonic piloted by a rat in the episode "Pseudo-Sonic" from Adventures of Sonic the Hedgehog. Metal Sonic was also among the various candidates fans believed to have the red eyes seen at the end of the canceled Sonic the Hedgehog series, before it was revealed by the creator that they were Ixis Naugus'.

Allies

 * Dr. Eggman (creator) (occasionally)
 * Shadow the Hedgehog (Sonic Rivals 2 only)
 * Bowser Jr. (partner in crime, Mario & Sonic Series only)
 * Eggman Nega (temporarily in Sonic Rivals)
 * Wario (Mario & Sonic series)
 * Tails Doll (Sonic R)
 * EggRobo (Sonic R)
 * Metal Knuckles (Sonic R)

Enemies

 * Sonic the Hedgehog (Organic doppelgänger)
 * Miles "Tails" Prower
 * Knuckles the Echidna
 * Shadow the Hedgehog (Except Sonic Rivals 2)
 * Rouge the Bat
 * E-123 Omega
 * Amy Rose
 * Cream the Rabbit
 * Big the Cat
 * Chaotix
 * Silver the Hedgehog
 * Dr. Eggman (occasionally)
 * Mario (Mario & Sonic at the Olympic Winter Games)
 * Ifrit
 * Metal Sonic 3.0
 * Eggman Nega
 * Jet the Hawk
 * Wave the Swallow
 * Storm the Albatross

Theme Songs

 * "What I'm Made Of..." - Crush 40, played during the battle against Metal Overlord
 * "Never Let It Go (Death Egg's Eye)", played during the battle against him in Sonic the Fighters.
 * "Metal Sonic" - Howard Drossin, from the Virtual Sonic album.
 * "Look-a-like" - Riu Konaka, From the Sonic the Hedgehog: The Movie
 * Metallic Madness - The Japanese music of this Zone during present time is played during Metal Sonic's All-Star move; Maximum Overdrive.

Memorable Quotes

 * "All Life Form Data.....Successfully Copied." - Neo Metal Sonic after he copies the data of Sonic, Knuckles and Tails after they defeated 'Dr. Eggman' in Sonic Heroes.
 * "Ultimate Life-Form Data....Has Been Copied." - Neo Metal Sonic after he copies the data of Shadow after Team Dark defeated 'Dr. Eggman' in Sonic Heroes.
 * "Chaos Data... has been copied" - Neo Metal Sonic after he releases Froggy and Chocola after being defeated by Team Rose in Sonic Heroes.
 * "All living things kneel before your master!" - Neo Metal Sonic says before starting his transformation of Metal Medness in Sonic Heroes.
 * "I'll tear you to pieces" - Metal Madness when begining his fight with Team Rose.
 * "Burn to DEATH!" - When using his flamethrower against Team Rose/Dark in Sonic Heroes.
 * "It's too late..." - Metal Madness talking to Team Rose after being beaten in Sonic Heroes.
 * "You're all useless now that I've copied all of your data." - Metal Madness to Team Chaotix at the start of battle in Sonic Heroes.
 * "GET AWAY!" - When using his claw missiles against Team Chaotix/Dark in Sonic Heroes.
 * "This victory shall soon turn into despair!" - Metal Madness says to Team Chaotix after being beaten in Sonic Heroes.
 * "Even the ultimate life form can't stop me!" - Metal Madness during Team Dark's part of the battle in Sonic Heroes.
 * "How appropiate to have a robot overlord rule a robot kingdom!" - Metal Madness to Team Dark after being beaten by them in Sonic Heroes.
 * "Long time no see, Sonic, my loathsome copy." - Metal Overlord before starting his battle with Team Super Sonic in Sonic Heroes.
 * "Sonic... I was created for the sole purpose of destroying you. But I can never seem to defeat you. That is why I transformed my body with my own hands." - To Super Sonic in the boss fight.
 * "I'll crush you!" - Metal Overlord after picking up one of Eggman's ships in and before throwing at Team Super Sonic in Sonic Heroes.
 * "But that was the past. Now you're nothing but a speck of dust to me" - To Super Sonic in Sonic Heroes.
 * "See me as I am, no longer afraid of anything! I shall become the ultimate overlord, ruling as the world's most supreme being!" - To Team Super Sonic in Sonic Heroes.
 * "Why! I had it all! I am the ultimate overlord, Metal Sonic! I am the real Sonic!" - Metal Overlord after being defeated by Super Sonic, Tails and Knuckles in Sonic Heroes.
 * "It's no use....but why can't I defeat you...?" - Neo Metal Sonic question after his defeat before transforming back into Metal Sonic in Sonic Heroes.
 * "FACE ME IF YOU WISH TO HAVE THE CHAOS EMERALD." - Classic Metal Sonic before Classic Sonic begins to battle him in Sonic Generations.
 * "There is only one Sonic..." - Metal Sonic says before being melted away in lava in Sonic the Hedgehog The Movie.

Trivia

 * Although Metal Sonic 3.0 appears in Sonic Rivals 2, it is unknown which (if any) of the previous versions of Metal Sonic are versions 1.0 and 2.0. In the Archie universe, the original Metal Sonic made by Dr. Ivo Robotnik was 1.0, and the other Metal Sonics made by his alternate counterpart, Dr. Eggman Robotnik, were all 2.0.
 * Sonic Rivals 2 was the first Sonic game where Metal Sonic has done some heroic deeds (by helping Shadow saving the world from the Ifrit then giving Shadow the Chaos Emerald in order to get Shadow out of the Ifrit's World).
 * GameDaily placed Metal Sonic 13th on their "Top 25 Video Game Robots" list, describing him as Dr. Eggman's "greatest creation" and praising the strength of his abilities.
 * In Sonic Heroes, Metal Sonic denied that he was a copy of Sonic and said, "Long time no see Sonic, my loathsome copy" and when he was defeated he said, "Why, I had it all! I am the ultimate overlord, Metal Sonic. I am the real Sonic." Although, in Sonic the Hedgehog: The Movie, he says, "There is only one Sonic!"
 * Though Metal Sonic is playable in Mario and Sonic at the Olympic Winter Games, in the DS version, he is also a boss character.
 * Metal Sonic's pose during the ending of Sonic the Hedgehog 4, looks just like his pose in Mario & Sonic at the Olympic Winter Games.
 * The only time that Metal Sonic is able to speak is during Sonic Heroes, while in all of his transformations (Neo Metal Sonic, Metal Madness, and Metal Overlord, as well as when he is disguised as Eggman).
 * Metal Sonic's 2D Sonic Channel artwork looks similar to his Sonic Rivals 2 pose.
 * Metal Sonic is one of the few characters with more than one transformation.
 * Strangly, Metal Sonic can only talk in his Neo form, while he talked to Sonic in Sonic Generations.

Gallery
For more images, see: Metal Sonic/Artwork