Agumon (Adventure)

Agumon is a fictional character and Digimon from the first two seasons of the anime and manga Digimon Adventure, and Digimon Adventure 02.

The name "Agumon" refers only to the Rookie form of this Digimon. Throughout the series, Agumon gains the ability to digivolve into a number of more powerful forms, each with a different name and special attack. The Rookie level, however, is his preferred form and the one he spends most of his time in. It is also the name he is most commonly referred to.

Agumon is partner to the DigiDestined leader Taichi "Tai" Kamiya and often counterpoints his partner. While both are matched well in that they can act rather brashly and hot-headedly when their friends are in danger, Agumon is typically the more cautious one, even if his partner disregards his advice. The pair joke around with each other a lot and go through many trials together, but their trust in each other is evident.

Personality
Agumon is much like his partner in that he can be kind and compassionate, but he is more serious than Tai. Though he can act rashly, Agumon is more cautious and less prone to getting into sticky situations, though he follows and protects his partner all the way. He can get philosophical at times as well, as he manages to help question his purpose. Agumon also shares Tai's main trait of being incredibly courageous.

Attacks
 * Pepper Breath (Baby Flame): Shoots an orange and red fireball from his mouth.
 * Claw Attack (Cross Fight): Slashes with claws.
 * Surudoi Tsume (するどいツメ): Attacks with claws.

Description
Agumon is created, along with the rest of the DigiDestined's Digimon, as part of a project to help control the balance between good and evil in the Digital World. When he is a Digi-Egg connected to Crest of Courage, the Dark Masters attack the facility where he is housed, and Gennai flees with the eggs in hand. He is taken to File Island, where he hatches into Botamon who eventually digivolves into Koromon. During this time, he plays with the other Digimon as he holds the Digivice that belongs to Taichi "Tai" Kamiya, waiting for his partner's arrival. One day, the Digivices suddenly vanish into the sky, heralding the coming of their partners.

Koromon discovers his partner, Tai, after he comes to the Digital World unconscious. Introducing himself, Koromon sticks by Tai despite his confusion and eventually meets up with Koushiro "Izzy" Izumi and until a Kuwagamon attacks them. Hiding in a tree to escape, the four eventually meet up with the rest of the DigiDestined, who attend the same summer camp as Tai and Izzy: Sora Takenouchi and, Yamato "Matt" Ishida and , Mimi Tachikawa and , Joe Kido and , and Takeru "T.K." Takaishi and. Unfortunately, Kuwagamon attacks them once more but Koromon, alongside the other Digimon, digivolves to his Rookie form to protect his partner and becomes Agumon. Though strong, Kuwagamon is still stronger, and they are thrown off a cliff.

Gomamon rescues them from drowning and the group ends up at a beach. Here, the DigiDestined discuss their good supply, and Agumon is the only one to eat in this time frame. Because Agumon is the only one to eat, he is the only one who has energy to battle the Shellmon who attacks, but he isn't strong enough to successfully fend him off. In order to help, Tai decides to provide a distraction. He is caught while doing so, and the rush of anger and protectiveness that Agumon feels spurs his digivolution into the Champion form Greymon, who defeats Shellmon.

Agumon follows Tai as he leads the group on their journey through File Island. After the group gets separated by, Agumon helps Tai survive the freezing cold through judicious use of his Pepper Breath to create fire.

Agumon returns to Primary Village in time to protect T.K., Matt's little brother, from as Greymon. They subsequently defeat Devimon and are told by Gennai to head to the Server Continent. Along the way, the group finds the Tags to their Crests but are attacked by on the Continent itself. The DigiDestined manage to escape into a tunnel, where Tai finds his Crest of Courage. This brings Tai arrogance, however, as well as the ambition to get Agumon to digivolve into Ultimate. Despite his efforts to cool Tai down, Agumon suffers as Tai overfeeds him in order to give him energy. When Etemon traps them in an arena against another Greymon and Agumon digivolves to fight, he is beaten because his reaction times are so slow due to the food. Tai walks deliberately into trouble, knowing that danger is what causes their partners to digivolve, but it has the wrong effect: Greymon dark digivolves to SkullGreymon, who rampages around and takes out, , and before regressing into an exhausted Koromon. As a result, both of them lose their confidence until arrives and forces them to face their doubts. Agumon views a time when Tai tried to learn how to ride a bike, and learns that he needs to bounce back after suffering from a defeat that despite all the hardship, all of the pain, he needs to come back after suffering defeat.

Agumon continues to support Tai as they discover Etemon's main base of operations. When Tai finally discovers what Courage truly is, he walks alongside his partner as they aim to take on Etemon fused with his Dark Network Tai's unflinching courage causes his Crest to shine, and Agumon digivolves to his Ultimate form MetalGreymon. MetalGreymon defeats Etemon, but Etemon's massive energy causes a dimensional rift to open, which Tai and MetalGreymon are sucked into.

The warp leads back to the Real World, and Agumon has dedigivolved to Koromon during the transfer. Koromon follows his partner home and relaxes for a bit while taking care of his little sister Hikari "Kari" Kamiya, who seems to recognize him as Koromon, as she, though they do not remember, have met another Koromon before. Tai soon realizes that not only has little time passed but also that his friends haven't returned. Digimon then begin appear, though only he and his sister can see them. When Tai receives a warning from Izzy to not come back, Koromon becomes restless. Digivolving to Agumon and defeating an Ogremon, a dimensional warp opens. Agumon knows he must return and eventually convinces Tai to return as well, despite leaving his little sister behind.

Upon their re-entry, Agumon finds the group in severe disarray. Time moves much quicker, and months have passed in the Digital World though only hours have in the Real World. The entire team has broken up, mainly to look for him an his partner, and are moving their separate ways. Tai and Agumon first locate T.K., who has been left alone by the rest of the group, and manages to convince him to reconcile with his partner,, rather than be manipulated by. With T.K. and their partners, Tai leads them to a diner, where they find Matt and Joe and rescue them from. Agumon and Tai join Joe in looking and find Mimi, managing to convince her to leave her princess life with the and.

By now, has emerged as the next great threat, and he is in search of the eighth DigiDestined child. The DigiDestined pursue him to the Real World through Myotismon's special gate. Throughout this time, Tai manages to hide Agumon from his family except Kari, who continues to recognize him. When is captured and Myotismon stages an all out attack to round up all the children to force Gatomon to find her partner, he and Greymon whisk Kari to safety, though they are unable to save his parents. Entrusting Kari to Matt, Tai and Greymon attempt to rescue the trapped citizens, though they only manage to make it in time to regroup with the DigiDestined in a final assault on Myotismon.

After Myotismon is first defeated due to 's sacrifice, Myotismon instead digivolves to. The DigiDestined believe that the key to defeating VenomMyotismon is to have and  shoot Tai and Matt with arrows of hope and light. Both of them agree, and Agumon and Gabumon warp digivolve into WarGreymon and, Mega Digimon who, with help, manage to defeat VenomMyotismon. Thinking that it is finally over, the group is shocked to see the Digital World appear in the sky. The DigiDestined and their partners decide to go back to protect both worlds they love. All of them open another warp and go back to the Digital World to restore the balance.

The Dark Masters emerge as the major enemy, and it is revealed that they were the ones who warped and rebuilt the Digital World. Upon their return, Agumon is handily defeated even as WarGreymon, and it is only through the agency of Piximon, who tells the group that they must become strong, that they are able to escape the immediate situation. It is through his sacrifice that they are able to flee entirely. Tai takes this to mean that they must become physically strong, and he orders the group to defeat a Shellmon, whom they previously needed to digivolve to beat. Izzy discovers his that his WarGreymon form is equipped with "Dramon Destroyers" able to work handily on Digimon with "Dramon" in their name, like the Dark Master they are up against. Agumon digivolves to WarGreymon to fight him, but he is being defeated. Through 's sacrifice, WarGreymon defeats MetalSeadramon.

In the Dark Master 's forest, Agumon is rendered nearly useless by Puppetmon's manipulations, but T.K. manages to free them from Puppetmon's control. As MetalGreymon, he manages to defend the group from attacking Garbagemon up until Matt and MetalGarurumon save them. Tai's desire to continually move forward is at odds with Matt's need to mourn their lost, and that along with 's manipulations culminate in Tai and Matt getting into a fistfight as WarGreymon duels with MetalGarurumon. Their battle ultimately causes a rift in the friends. Matt leaves to reevaluate his place in the group, while Mimi can't deal with the drama and the fighting and strikes off on her own, while Joe goes with her to make sure she is safe. The group are attacked by Puppetmon and his RedVeggiemon army, but they manage to drive him off.

While split, Kari falls ill, and Tai frantically searches for a cure for his sister, not knowing that it is the Dark Master 's domain. Though weakened by battle, Koromon is empowered by Kari's light to digivolve to WarGreymon and defeat Machinedramon once and for all.

About to fight Piedmon, they are met by his vanguard. Agumon wishes to fight, but Tai, with all of his personal growth, doesn't allow it. He, looking ahead, has and Angewomon take care of it to allow Agumon to save his strength for Piedmon. Tai and WarGreymon manage to hold the line against Piedmon until Matt returns, and the two reconcile, with Matt's Crest of Friendship healing WarGreymon's wounds. Unfortunately, Piedmon proves to be too strong and captures him, Matt, and their partners by turning them into keychains. , Patamon's Ultimate form, saves them, and they manage to defeat Piedmon, only for to appear.

Apocalymon turns out to be a formidable foe, destroying their Crests and managing to turn them into free-floating data. Agumon tells the group to not give up and, bonding with Tai, declares that they are invincible together. Tai discovers that the Crest of Courage lies within him, and uses that power to digivolve Agumon to WarGreymon and return to normal. All together, the group defeats Apocalymon, with WarGreymon launching a Terra Force directly into his main body.

Unfortunately, the solar eclipse marks the rebirth of the Digital World. In the English version, it is thought that the gate would never reopen, stranding the DigiDestined in the Digital World, while the Japanese version has the reasoning that the Digital World might see them as foreign elements as it tries to recover and might delete them. Either way, the DigiDestined must leave their partners. Tai and Agumon reminisce at the spot where they fought Seadramon, joking and ribbing at each other.

At that point, Agumon, along with the other partner Digimon, wave goodbye to their partners as they take a trolley back home.

During the December after their adventures, the DigiDestined and their partners are captured by and held hostage. Only Agumon is spared, and it is he who brings Ryo Akiyama to the Digital World. Agumon fights alongside Ryo the entire time until he can free his partner who is the last DigiDestined to be rescued, only being saved when Ryo finally defeats Millenniummon in his Lair. Tai reunites with Agumon once before they have to leave.

A attacks on the internet, and Agumon joins the rest of the Digimon when Gennai contacts the DigiDestined about it. Because Tai and Izzy are the two immediately available, Agumon and are sent into the Internet to battle the rapidly digivolving Digimon. proves to be a formidable foe and defeats Greymon and Kabuterimon when they attempt to digivolve into MetalGreymon and MegaKabuterimon.

During this, Infermon infects the Pentagon's missile systems and launches two nuclear missiles, commanding them to strike Colorado and Tai's house in an attempt to kill him. Tentomon and Patamon are knocked out of the battle, and Agumon and Gabumon warp digivolve into WarGreymon and MetalGarurumon, but they are slowed by the many emails kids from around the world send in encouragement. In frustration, Tai smacks the computer screen and causes the connection to crash. After rebooting, Tai finds a near comatose WarGreymon, with Infermon nowhere to be seen. With more encouragement, however, they set out toward Infermon, who has now digivolved into and is multiplying to mask his original body. The emails from around the world still slow WarGreymon, and Tai, feeling for his partner's broken state, somehow manages to transport himself into the Internet along with Matt. Between their power and the strength of the world's children, WarGreymon and MetalGarurumon DNA digivolve into Omnimon, and, with the aid of the very same emails which slowed his Digimon, manage to defeat Diaboromon in time to stop the nuclear missile from detonating.

Not long after the events of Our War Game!, Ryo is called to the Digital World to take care of the last remaining Diaboromon clone. It is all a ruse by Millenniummon to call Ryo back, however, and Millenniummon cleaves the Digital World into two, petrifying Tai and Agumon in the process. Once Millenniummon in his final is defeated, Tai and Agumon are released.

Shortly after Tag Tamers, Ryo is recalled to the Digital World to participate in the D-1 Tournament. Tai is the master of Grade 1, and Agumon as WarGreymon stands alongside him as well as a Triceramon and a Cyclomon.

After these events, Gennai calls the DigiDestined to the Digital World in order to give up their Crest power to fully revitalize the Digital World with a protective barrier. As a result, Agumon loses the ability to become MetalGreymon and WarGreymon.

When the Digimon Emperor begins his conquest of the Digital World, Agumon's fear and desperation sends a message to Tai, who manages to find his way to the Digital World. Because the Digimon Emperor's Dark Digivice prevents normal Digivolution, the Digimon are helpless against this new threat. Agumon flees with Biyomon, Tentomon, Patamon, Gatomon, and Tai until they find a cave that has an egg inside with the Crest of Courage. Tai attempts to lift it, but it instead releases three lights which turn into D-3s that allows Davis Motomiya, and eventually Yolei Inoue and Cody Hida, to enter the Digital World. Saved by the newcomers, Agumon, along with the rest of the old guard, lay low.

Agumon takes part in a rescue operation to free Gotsumon from one of the Digimon Emperor's prisons, but the operations are strictly small scale for the most part, up until their efforts to liberate a small town called Santa Geria. There, they find out that the Control Spires are what ultimately expand the Digimon Emperor's control, by both prohibiting normal Digivolution and powering the Dark Rings in the same area. By taking out these Control Spires, the DigiDestined's Digimon are allowed to digivolve normally once more, and Agumon assumes his Greymon form to take out threats.

Unfortunately, the Digimon Emperor, now revealed as the genius kid Ken Ichijouji, takes interest in Greymon when it is revealed that his Dark Rings cannot fully control Ultimate Digimon. He captures Greymon with a Dark Ring and tries to force him to digivolve with his Dark D-3. This does not have the effect he's looking for, however, and Greymon instead dark digivolves to SkullGreymon and wreaks havoc uncontrollably. He reverts to Agumon once tired, and the Digimon Emperor escapes. Numerous experiments continue to show that the Dark Ring won't control an Ultimate, as Agumon is repeatedly forced to digivolve to SkullGreymon. After one experiment almost leads to SkullGreymon escaping, the Digimon Emperor begins to develop the Dark Spiral, but, the Digimon Emperor's partner, frees Agumon from both a desire to not see him suffer and jealousy that Ken pays him such attention. Just as Agumon reunites with his partner, the Digimon Emperor shows up, enslaves Agumon with a newly completed Dark Spiral, and successfully dark digivolves him into a viral MetalGreymon.

Under the Digimon Emperor's control, MetalGreymon devastates areas. The DigiDestined work hard to stop him and end up confronting him in front of the Digi-Egg of Friendship. Most of the DigiDestined resolve to do what they must to save Agumon, even hurt him if it comes down to it, but Davis can't understand it. It takes seeing the pain the rest of the DigiDestined are in, as well as his partner, to realize that friendship sometimes means hurting another to help them. Activating the Digi-Egg of Friendship, they manage to destroy the Dark Spiral and free Agumon from the Emperor's grasp.

The DigiDestined eventually defeat the Digimon Emperor and return him to being just Ken Ichijouji, who regrets his actions and tries to atone. Agumon is among the cleanup effort that springs up in the aftermath, until and  complicate matters by creating artificial Digimon from Control Spires, culminating in creating  from 100 of them. Something is different about him, however, and he disobeys the two in search of his own purpose. Agumon stumbles across BlackWarGreymon, and the two have a meaningful conversation about the meaning of life, up until a Knightmon attempts to destroy a Destiny Stone and BlackWarGreymon flees. Though BlackWarGreymon does not stop, he does mull over Agumon's words.

At Christmas, Arukenimon and Mummymon launch a full-scale invasion of the Real World by causing Control Spires to appear all around the world. Through the Harmonious One 's DigiCore, Agumon, along with the rest of the DigiDestined's Digimon, are given the power to reach their higher forms once more. Agumon and Tai, along with T.K. and Patamon, go to Paris, France and meet up with the French DigiDestined Catherine and her partner to deal with the Mamemon Brothers and Giromon. Agumon digivolves to Greymon to deal with BigMamemon and to MetalGreymon to take out the Control Spire.

The Daemon Corps then make their stand in the Real World. manages to neutralize most of the Digimon by freezing their data, but Agumon, along with the rest of the other Digimon, give up the power boosts that Azulongmon gave them to allow to overcome this and digivolve to his. Agumon returns in time to help face off against BlackWarGreymon, now in a full out existential crisis due to the revelations he heard from Yukio Oikawa. Using another power boost from Azulongmon to digivolve to WarGreymon and working off his conversation with BlackWarGreymon before, WarGreymon attempts to befriend BlackWarGreymon. After beating him down, BlackWarGreymon leaves to thinks.

Agumon appears again during the final stand against, representing the will to stand against his darkness.

When makes his reappearance, Tai and Agumon, along with Matt and Gabumon, return to the internet to fight him once more as Omnimon. Though they manage to defeat him with the aid of T.K.,, Kari, and , Diaboromon manages to escape into the Real World as a swarm of , who reform into. Omnimon is defeated by this new Digimon, along with Imperialdramon Fighter Mode, but he gives his strength up to allow Imperialdramon to digivolve to his and defeat Armageddemon.



In the year 2027, Agumon joins Tai as a United Nations diplomat for the Digital World.

Digimon Adventure 3D: Digimon Grandprix!
As Entry No. 1 riding the Taiti-Special, a missile, Agumon takes part in the Digimon Grandprix to obtain the title of "King of Digimon". Unfortunately, he has trouble controlling his vehicle. When he finally manages to get on course, he picks up the other fallen riders. Unfortunately, the Taiti-Special's speed and uncontrollablility makes Agumon poop, taking out Palmon and Gabumon before going off course once more. When it looks like DemiDevimon is going to win, Agumon, carrying all of the other contestants, shoots ahead. They all cross the finish line and share the title of "King of Digimon," except immediately after the missile goes out of control, sending them off into space.

Digimon Xros Wars: The Young Hunters Who Leapt Through Time
Agumon appears alongside Tai on the Old Clock Shop Man's boat.

Digimon Tamers: Brave Tamer
Ryo Akiyama has the choice to save either Tai and Agumon or Davis Motomiya and. If Ryo saves Tai from, he recruits Agumon for his battle party. If he chooses to save Davis instead, he must battle the viral MetalGreymon under the Digimon Emperor's control, titled "MetalGreymon ER".

Digimon Tamers: Digimon Medley
Agumon is playable in the following chapters of the game with Tai as his partner: "Hyouryuu? Bouken no Shima!", "Yami no Shisha Devimon", "Meikyuu no Nanomon", both versions of "Fukkatsu! Maou VenomVamdemon", the sections "Araburu Umi no Ou! MetalSeadramon", "Bakugeki Shirei! Mugendramon", and Jigoku no Doukeshi Piemon" of the "Ma no Yama no Shitennou! Dark Masters" chapter, "Saigo no Ankoku Digimon", and the Paris path of the "Sango to Versailles Dairansen!" section of the "Zen'in Shutsudou! Imperialdramon" chapter.

Fighting Games
Agumon appears as a playable fighter partnered to Tai in the fighting games Digimon Battle Spirit, Digimon Tamers: Battle Spirit Ver. 1.5, and Digimon Rumble Arena, where he has WarGreymon as his digivolution. He is also playable in Digimon Rumble Arena 2, where he can digivolve first to Greymon and then WarGreymon.

Other Forms
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Botamon's Digi-Egg
Botamon's Digi-Egg is held by the Agents alongside Tai's Digivice and Tag, the Crest of Courage, and the other Digi-Eggs, Digivices, Tags, and Crests. When attacks their base and steals the Tags and Crests, Gennai takes the Digi-Eggs and Digivices and escapes in a Mekanorimon. He deposits the Digi-Eggs on File Island, where it eventually hatches into Botamon.



Botamon
Botamon is Agumon's Fresh form.

After his Digi-Egg is rescued from the Dark Masters before the start of Digimon Adventure, Agumon hatches into Botamon on File Island. He eventually digivolves to Koromon while waiting for his partner to come.

Botamon is Agumon's Fresh Digivolution in Digimon Tamers: Brave Tamer, dedigivolving to him when his YP depletes. His default technique is "San no Awa".

Attacks 
 * San no Awa (酸の泡): Fires harmless pink bubbles from his mouth.


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Koromon
Koromon is Agumon's In-Training form.

While waiting for his partner before the start of Digimon Adventure, Botamon digivolves to this form on File Island. With the rest of the DigiDestined's Digimon, he plays with the Digivices until they disappear one day, heralding the arrival of their partners. Koromon finally meets his partner Tai while he is unconscious from his first arrival and tries to protect him when Kuwagamon attacks them. He digivolves to his main form Agumon when Kuwagamon corners him on the face of a cliff.

From then on, Koromon only appears when Agumon uses too much energy by digivolving to his Ultimate or Mega forms, such as after he dark digivolves to SkullGreymon, after defeating as MetalGreymon , and warp digivolving to WarGreymon to beat.

Koromon is Agumon's In-Training Digivolution in Digimon Tamers: Brave Tamer, digivolving to him as he recovers from depleting his YP. His default technique is "San no Awa".

Attacks 
 * Bubble Blow (泡): Fires harmless pink bubbles from his mouth.
 * San no Awa (酸の泡): Fires harmless pink bubbles from his mouth.



Greymon
Greymon is Agumon's Champion form.

Agumon first digivolves to Greymon to protect Tai from a wild Shellmon. Greymon then becomes, for the most part, Agumon's default battle form as it provides a significant amount of strength without delving too deeply into his energy reserves. He uses it to take on  and all threats up until, where he digivolves to MetalGreymon. Greymon still comes into use when they can't afford to spend too much energy, like while infiltrating 's castle to reach the gate or when fleeing his forces while in Odaiba.

Agumon tries to use Greymon against but it proves to be too weak, and he is interrupted in digivolving to MetalGreymon.

Agumon once again assumes his Greymon form in the sequel in order to protect areas liberated from the Digimon Emperor's control. Unfortunately, when the Digimon Emperor discovers that his Dark Rings, devices he uses to control his Digimon slaves, don't work on Ultimate Digimon, he takes an interest in Greymon. Entrapping him with a Dark Ring, he attempts to use his Dark D-3 to digivolve him into Ultimate but only succeeds in creating SkullGreymon once more. Numerous experiments on Greymon make the same result, only for the Digimon Emperor to create the improved Dark Spiral.

Greymon is Agumon's Champion Digivolution in Digimon Tamers: Brave Tamer, digivolving to him when he is level 11. His default technique is "Mega Flame".

Greymon is also Agumon's Champion Digivolution in Digimon Tamers: Digimon Medley. He appears in the following chapters: "Hyouryuu? Bouken no Shima!" and "Yami no Shisha Devimon".

Attacks 
 * Nova Blast (Mega Flame): Fires a giant blast of fire from his mouth to incinerate his enemies.


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SkullGreymon
SkullGreymon is an alternate Ultimate form of Greymon.

SkullGreymon is the result of Tai's reckless actions in trying to make Agumon digivolve to Ultimate. By overfeeding him and then deliberately putting himself into danger, he gets Greymon to digivolve but through Dark Digivolution into this horrible form. He annihilates the Greymon attacking them but doesn't differentiate between friend and foe. He only stops when he runs out of energy and reverts to Koromon. This action breaks the confidence of both Tai and Agumon, which only recovers through 's special training. At the end of the series, Gennai reveals that SkullGreymon isn't a wrong digivolution for Agumon, just that it isn't a Digimon suited for their purposes, in order to quell the conversation about Virus Digimon.

Unfortunately, SkullGreymon makes another appearance in the sequel. When the Digimon Emperor takes control of Greymon with a Dark Ring, he tries to force him to digivolve into MetalGreymon. The result is the Dark Digivolution into the rampaging SkullGreymon. Further experiments with the same result leads to the Digimon Emperor creating the improved Dark Spiral.

SkullGreymon appears in the 3rd CD Drama, when Agumon is criticized for his poor impersonations.

Attacks 
 * Dark Shot (Ground Zero): Launches an organic missile from his spinal cord.
 * Ground Zero Kai (グラウンドゼロ改)



MetalGreymon
MetalGreymon is Agumon's true Ultimate form. His left arm is called the "Trident Arm".

Greymon first digivolves to MetalGreymon to battle, when Tai learns the true nature of Courage in being stalwart and moving forward even when scared. MetalGreymon manages to take out Etemon, even when he is powered by his Dark Network. MetalGreymon then becomes the form that Agumon takes whenever they face an Ultimate Digimon to match power for power, such as against  and SkullMeramon, up until he attains his Mega form, WarGreymon

Greymon attempts to digivolve to this form against but is interrupted mid-Digivolution.

Some time after Apocalymon's defeat, Gennai calls the DigiDestined to the Digital World in order to give up their Crest power to fully revitalize the Digital World with a protective barrier. As a result, Agumon loses the ability to become MetalGreymon.

When the Digimon Emperor comes to power, however, he eventually tests his new Dark Spiral on Greymon and dark digivolves him into a viral MetalGreymon. MetalGreymon wreaks havoc across the Digital World until he is confronted by the DigiDestined. Resolves to help in him in any way possible, the DigiDestined attack him, though Davis Motomiya holds back because he's afraid of hurting him. It takes the others to get Davis to realize that sometimes he has to hurt a friend to help him, and so he obtains the Digi-Egg of Friendship and gets his partner to digivolve to  and take out the Dark Spiral. Afterward, MetalGreymon degenerates back to Agumon.

When and  begin their invasion of the Real World, Agumon gains the ability to digivolve to MetalGreymon once more with the power of the Harmonious One 's DigiCore. MetalGreymon helps deal with the Mamemon Brothers and the Control Spire in Paris, France. MetalGreymon appears one more time against of the Daemon Corps, but he gives up his power to allow  to digivolve to his.

MetalGreymon is Agumon's Ultimate Digivolution in Digimon Tamers: Brave Tamer, digivolving to him when he is level 21. His default technique is "Giga Destroyer" which deals damage to one enemy. Additionally, his viral version is called "MetalGreymon ER" to represent him under the control of the Dark Spiral (though the ER refers to the Dark Ring's original name of Evil Ring) and must be beat in order to save Davis and Veemon. MetalGreymon ER's technique is also "Giga Destroyer" with the same effect.

MetalGreymon is also Agumon's Ultimate Digivolution in Digimon Tamers: Digimon Medley. He appears in the following chapters: "Meikyuu no Nanomon" and the Paris path of the "Sango to Versailles Dairansen!" section of the "Zen'in Shutsudou! Imperialdramon" chapter.

Attacks 
 * Giga Blaster (Giga Destroyer): Fires two fish-shaped missiles from his chest.
 * Mega Claw (Trident Arm): Shoots his "Trident Arm" to slash, stab, or wrap up enemies.


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WarGreymon
WarGreymon is Agumon's Mega form. He is equipped with the "Dramon Destroyer" gauntlets and the "Brave Shield" on his back.

WarGreymon is the result of a prophecy leading to 's defeat. When Tai and Matt are pierced with arrows of hope and light, Agumon and attain their Mega forms. Together with the rest of the DigiDestined and their Digimon, they manage to defeat VenomMyotismon.

WarGreymon in instrumental in defeating the Dark Master, as he is equipped with the "Dramon Destroyer" gauntlets which do extra damage against Digimon with "Dramon" in their name. Unfortunately, it takes Whamon's sacrifice before WarGreymon can do so, by ripping MetalSeadramon apart from within. WarGreymon clashes with MetalGarurumon when Matt questions his place on the team but defeats the Dark Master  when powered by Kari Kamiya's light. WarGreymon manages to hold the line against until Matt arrives, but he is turned into a keychain early in the full fight and requires  to fully recover in time to defeat the jester. In the final charge against, WarGreymon, with attacks Apocalymon's main body.

Agumon digivolves to WarGreymon to fight, but he is beaten when the emails from around the world slow him down. Despite this, WarGreymon attempts to fight once more, and combined with the power from the hopes of everyone, DNA digivolves with MetalGarurumon to Omnimon.

In accordance with Our War Game!, WarGreymon is seen digivolving to Omnimon in Digimon Adventure 02: Tag Tamers, and Tai fights with WarGreymon in Digimon Adventure 02: D-1 Tamers.

Between Digimon Adventure and its sequel, Gennai calls the DigiDestined to the Digital World in order to give up their Crest power to fully revitalize the Digital World with a protective barrier. As a result, Agumon loses the ability to become WarGreymon.

In the sequel, when emerges in the Real World to find/kill Yukio Oikawa, Agumon is sent to stop him. With a new upgrade from the Harmonious One, he is able to warp digivolve to WarGreymon. He and Tai confront BlackWarGreymon atop Mount Fuji, and they battle as Oikawa and company make their escape. The battle is fierce, destructive, and completely stalemated. Neither can get the upper hand until intervenes. He later appears to witness the last moments of BlackWarGreymon, whose death and noble sacrifice hit him hard.

WarGreymon is Agumon's Mega Digivolution in Digimon Tamers: Brave Tamer, digivolving to him when he is level 31. His default technique is "Gaia Force".

WarGreymon is also Agumon's Mega digivolution in Digimon Tamers: Digimon Medley. He appears in the following chapters: both versions of "Fukkatsu! Maou VenomVamdemon", the sections "Araburu Umi no Ou! MetalSeadramon", "Bakugeki Shirei! Mugendramon", and Jigoku no Doukeshi Piemon" of the "Ma no Yama no Shitennou! Dark Masters" chapter, and "Saigo no Ankoku Digimon".

WarGreymon is also a playable Digimon, whether standalone or through digivolution, in Digimon Battle Spirit, Digimon Tamers: Battle Spirit Ver. 1.5, and Digimon Rumble Arena.

Attacks
 * Terra Force (Gaia Force): Gathers all of the energy within the atmosphere and concentrates it into one spot, then fires it as a super-dense, high-temperature fireball energy shot.
 * Terra Force (Brave Tornado) : Spins at tremendous speed like a tornado and launches himself at the enemy.
 * Brave Shield: Uses his "Brave Shield" to defend.
 * Mega Claw (Dramon Killer): Slashes his "Dramon Destroyer" gauntlets.



Omnimon
Omnimon is a Mega Digimon that is the result of WarGreymon and DNA Digivolving. His right MetalGarurumon hand holds the "Garuru Cannon" and his left WarGreymon hand conceals the "Grey Sword", while his left arm also has the "Brave Shield Omega".

When threatens the world with a nuclear strike, WarGreymon and MetalGarurumon combine together with the power of all those who are watching their fight through the internet. Omnimon quickly clears the Diaboromon clones and takes out the true Diaboromon, which holds the timer for the nuclear missiles. This event is referenced and shown in Digimon Adventure 02: Tag Tamers as well as brought up in Digimon Adventure 02 when the new DigiDestined discover the ability to DNA Digivolve as well.

When Diaboromon returns after the events of the series, Omnimon reforms in the net and takes out Diaboromon with the help of and. Unfortunately, this is all his plan to split into who escape into the Real World and merge into a giant. Armageddeon proves to be a too powerful foe for Omnimon and. At their most desperate, Omnimon gives his power to Imperialdramon so that he can digivolve to his and defeat Armageddemon once and for all.

In Digimon Tamers: Brave Tamer, Omnimon can be used if Ryo Akiyama rescues both Tai and Matt, thus obtaining Agumon and, and equips both with Calumon cards. He can then DNA Digivolve them to Omnimon during battle.

Omnimon is also a playable Digimon in Digimon Rumble Arena.

Attacks 
 * Transcendent Sword (Grey Sword): Slashes with the "Grey Sword" which emerges from the WarGreymon head.
 * Supreme Cannon (Garuru Cannon): Fires colossal energy balls at foes from the "Garuru Cannon" which emerges from the MetalGarurumon head.
 * Double Torrent: Freezes foe in a wave of ice from the MetalGarurumon head before incinerating them in a burst of fire from the WarGreymon head.


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