Digimon Fusion, known in Japan as and also titled as Digimon Fusion Battles, is the sixth anime television series in the Digimon franchise, produced by Toei Animation. The series aired on TV Asahi from July 2010 to March 2012.

Its storyline follows the adventures of Mikey Kudo, who utilizes the power to fuse any of his Digimon partners. The series is divided into three arcs, with the latter two given the subtitles of , and respectively.

The series was licensed outside of Asia by Saban Brands for an English-language adaptation, which was produced by Studiopolis; the third and final arc did not receive an English localization. The series was also adapted into a manga series and multiple video games.

Plot

Season 1

Mikey Kudo receives the Fusion Loader, creates his own team (Fusion Fighters) and recruits some Digimon partners in the Digital World. There, he learns that Lord Bagramon is attempting to conquer the world by collecting 108 Code Crown fragments and wields the Darkness Loader. Mikey collects some fragments from each zones, but Bagramon steals them and recruits AxeKnightmon. Mikey, Angie Hinomoto and Jeremy Tsurugi are sent back to the human world, but Mikey returns to the Digital World, leaving his friends behind.

Season 2

When Bagramon creates an empire divided into seven kingdoms, Mikey, Christopher Aonuma and Nene Amano defeat each general. They learn that Bagramon is using Ewan to oppose them, while they gathered negative energy from those which transformed fragments into a Dark Stone (D5). After Mikey saves Ewan and retrieves all fragments, Shoutmon defeats Bagramon and plans to bring peace to both worlds.

Season 3

One year later, Mikey discovers an unstable realm between both worlds and learns that Quartzmon is absorbing data. The DigiQuartz is where Digimon Hunters capture Digimon for leaving any world and feeding negative emotions on anyone. The Clock Store Owner (a revived and regretful Bagramon in disguise) unites all heroic characters from different parallel universes. Tagiru and Gumdramon wield Bagramon's lost arm "Brave Snatcher", in order to defeat Quartzmon. With both worlds restored, all humans and their partners are separately return to their own universe. The series ends with Mikey, Tagiru and their friends planning their future.

Characters Fusion Fighters The Fusion Fighters (known as Xros Heart in Japan) are the primary protagonist group in Digimon Fusion. The group is led by Mikey Kudo, who gains the Fusion Loader, a device that allows Digimon to combine through a process known as DigiXros. Using this ability, the team travels throughout the Digital World to oppose the Bagra Army and prevent it from gaining control by collecting the different scattered fragments of the Code Crown

Mikey Kudo is an upbeat middle school teenager who helps anyone in need. He excels in all sports and has a charming personality that wins over humans and Digimon alike, though he has a tendency to overexert himself. Receiving his red Fusion Loader from Omnimon, one of the Legendary Digimon, Mikey founded the Fusion Fighters alongside his partner Shoutmon. Aside from his charisma, Mikey has proven himself to be an excellent strategist, able to see through the plans of his enemies and counter them accordingly, making his presence a necessity for the team. Unlike other members, Mikey can hear the melody of Digimon that are in life-threatening danger. When Bagramon steals all 108 Code Crown fragments, he sends Mikey, Angie, Jeremy and Shoutmon back to Earth. There, Mikey learns that time on Earth is far slower than in the Digital World before he attempts to find a way back to the Digital World to save it. By then, the one who gave him his Fusion Loader is revealed to be Omnimon, who reveals the origin of the DigiCards as well as the history of the Digital World and tells them how he ended up on Earth as a DigiCard and has been searching for someone who could hear him, which turns out to be Mikey, as only he can hear the Digital Melody. After enabling Shoutmon to digivolve into OmniShoutmon, in order to do battle, defeat and ultimately destroy Tactimon, Mikey returns to the Digital World to liberate it from Bagramon.

Shoutmon is a dragon/musician-like Digimon with extremely high aggressiveness due to hot-blooded enthusiasm, yet friendly towards his comrades. He enjoys singing and wields a microphone for leisure and to help in combat, his chances of winning depending on the amount of passion he has. When wounded while protecting the Village of Light from the Bagra Army's invasion of the Forest Zone, Shoutmon met Mikey as the two eventually join forces to save his home from the invaders. Becoming Mikey's main Digimon partner, Shoutmon's goal is to become Digimon King in order to better protect others, seeing the Code Crown fragments as a mean to fulfill his selfless desire. He acts as the core component of all the Fusion Fighters' primary DigiFusions and is the only member of the Fusion Fighters able to digivolve by himself naturally as well.

Angie is a kind student, a year younger than Mikey, who often ends up taking care of him when he tires himself out. She has proven herself to be strong-willed and courageous, such as when she overcame Laylamon's mind control by slashing her in the face with the Lake Zone's Code Crown fragment. Angie lives with her family, taking care of her three younger siblings. She stated to play shooting games with one of them, which helped in the Island Zone sub-arc. At one point, she and Mikey became close friends. She acts as the Fusion Fighters' peacemaker, often cheering on the backup members of the team in battle and forming a special bond with Cutemon. While fighting Quartzmon, Angie receives an orange Fusion Loader, and has Cutemon and Dorulumon as partners for the Fusion Fighters United Army.

Dorulumon is a lion-maned wolf-like Digimon with drills on his body and Cutemon's guardian. He once served with the Bagra Army as Tactimon's right-hand man, until leaving the organization due to its cruel methods, which involved sacrificing some of his own troops. Though he rejected repeated offers from Mikey to join the Fusion Fighters, preferring to travel alone, while aiding Cutemon in finding his parents, Dorulumon became a Fusion Fighter to honor his fallen friend BlueMeramon.

Cutemon is a mischievous and peppy but timid pink rabbit-like Fairy Digimon, whose ears allow him to sense nearby Digimon. Being the only one of his village to have escaped from the Bagra Army, Cutemon was found by Dorulumon as the two search for his abducted parents. Cutemon encountered Angie while in the Village of Light, taking a liking to her and her friends before eventually joining the team as their healer. In the process, Cutemon manages to find his parents but remains with the Fusion Fighters.

Jeremy Tsurugi is Mikey's classmate, considering himself to be his rival and demanding a rematch since the then-amateur he defeated him at a kendo championship competition. An exceedingly sensible person, he insists on troublesome things like how etiquette in a duel should be properly implemented. Because of this, Mikey feels awkward around his presence and Angie very obviously tries to chase him away. On the other hand, he grows familiar with the enemy's mentality and becomes a supporter for Mikey and the other Fusion Fighters. His parents run a mechanic-type business. Thanks to this, he is knowledgeable about machines and does repairs to Ballistamon.

Ballistamon is Shoutmon's best friend and a noble, taciturn warrior, who resembles a robotic rhinoceros beetle. He was originally , a robotic stag beetle equipped with powerful gatling cannons and a large loudspeaker who was created by Olegmon as a superweapon. A test of his sonic powers went awry and sent him into the Forest Zone, causing him to shut down. DarkVolumon was found by Shoutmon, who repaired and reconfigured him. With most of his memories lost, DarkVolumon was rechristened "Ballistamon" by Shoutmon and became his friend. Though Olegmon later restores his minion's memory, Shoutmon snaps Ballistamon to his senses.

Starmon is a small, star-shaped Digimon with sunglasses, who serves as the Pickmon leader and sees Shoutmon as their boss. Unlike the original Starmon, this Starmon is just a mobile star-shape. Normally forming the hilt of the Star Sword, Rare Star Sword and Star Axe, Starmon can become the gunsight of the Meteor Cannon when DigiFused with Beelzemon and several silver Pickmon. In the manga, Starmon and Pickmon can DNA Digivolve into .

The Pickmonz are a group of small guitar pick-themed Digimon who view Starmon as their leader. The Pickmon come in three varieties: yellow, silver and red. The yellow Pickmon DigiFuse with Starmon to form the and release from their mouths, with whom they can telepathically communicate. Several silver Pickmon can DigiFuse into the and can also DigiFuse with Starmon to form the . The silver Pickmon can DigiFuse with the single red Pickmon to form the , a special sword which is wielded by either Jeremy or Shoutmon.

Dondokomon is a small Digimon shaped like a taikō drum with drum sticks for arms. Living with his kind in the Village of Light, Dondokomon chooses to travel with the Fusion Fighters.

Jijimon is an elderly man-themed Digimon who serves as a sage-like figure in the Village of Light. He accompanies the Fusion Fighters and acts as their guide.

Lilymon is a plant fairy-themed Digimon and Shoutmon's childhood friend in the Village of Light, helping him in his attempt to convince Mikey in staying. She assists Mikey and Shoutmon when they returned to the Digital World, updating them on what occurred in their absence and rescuing the other Fusion Fighters from Dorbickmon.

ChibiTortomon is a small turtle/computer mouse-themed Digimon who lived in the Island Zone and admired the Fusion Fighters when they came to his home with a desire to be as strong as them. After some inspiring words from Shoutmon to follow his dream, ChibiTortomon helps the Fusion Fighters against Octomon before joining the group. As a member of the Fusion Fighters, ChibiTortomon serves as an underwater scout and enables Digimon he is Digifused with to breathe and swim freely underwater.

Beastmon is a Bastet/Nekomata-themed Digimon and the princess of the Lake Zone, who has a habit of sleeping. She also developed a crush on Mikey, whom she refers to as , much to the annoyance of Angie.

Knightmon is a knight-themed Digimon who is loyal to Beastmon. He was saved by Mikey when the Fusion Fighters came to the Lake Zone following his army's fight with IceDevimon. Knightmon refers to Mikey as and Beastmon as .

Eight pawn-themed Digimon who are under Knightmon's leadership, also join the Fusion Fighters once they save the Lake Zone. In the Japanese version, they tend to say "Chess" at the end of their sentences, and refer to Knightmon as .

Deputymon is a deputy sheriff/revolver-themed Digimon that the Fusion Fighters met in the Sand Zone. He was looking for a treasure in a diamond mine when he ran into the Fusion Fighters. Deputymon later gave the Sand Zone's Code Crown fragment and four DigiCards to Mikey. When Laylamon forcibly teleported the Fusion Fighters out of the Sand Zone, Deputymon was taken with them, officially making him a part of the team, with the main role of tracker. In the English dub, Deputymon speaks in a Western accent and his gun parts were recolored to blue.