Seasons & episodes

It's Tesla's birthday, and she desires more than anything her own SynchroChip. Through a series of crimes, the Neo WWW is able to retrieve her one, and she uses it to overcome Lan in battle. In the end, he is rescued by Ms. Yuri, but not before she has a special reunion with her twin sister Ms. Mari.

Sharo and Brightland cooperate in the production of a CrossFusion Research Institute, but Asteroid AirMan is sent to destroy it. Raika and Princess Pride work together to stop him, and they're chased to an abandoned castle amidst an ice storm where more secrets to this attack are unveiled. Raika ultimately defeats AirMan, and Pride receives her own Crest of Duo.

Lan meets Route, a guide program at an automobiles museum. Meanwhile, criminal Ken has to steal cars in order to rescue his girlfriend from a mob leader, and he is given Asteroid BrightMan to do so. Lan intervenes but is overpowered by BrightMan, so Route sacrifices herself in order to help defeat the Asteroid. However, Route is revived from back-up data, and peace is temporarily restored.

Lan becomes tired from constantly battling the Neo WWW, so Dex decides he wants to perform CrossFusion and help in the battle. He confronts Famous who uses Rush to create the Rush SynchroChip to help make it possible. Dex and Maylu accompany Lan to a dinosaur theme park where Viddy strikes, but Lan is too tired to battle. Dex attempts CrossFusion and fails, so in order to save the day, Maylu tries it. Surprisingly, she CrossFuses flawlessly and helps Lan defeat Viddy.

An investigation by Chaud in Netopia against a man named Rat leads to some shocking discoveries. A man named Jackass used the same crime tactics that Rat did, but his attacks were decades in the past, and Colonel was responsible for stopping him. Considering Colonel still exists in the present time, Chaud contemplates the true nature of his character. Chaud and Raoul ultimately capture Rat and defeat his Asteroid DrillMan, but not before his plan was put into motion, causing locks all over the world to suddenly unlock.

When a newspaper prints Tesla's age as thirty, she becomes enraged. During a robot battle convention, she hijacks a robot named Thirty and attacks the NetPolice. After a malfunction, the robot goes speeding after Lan and Fyrefox through DenTech City. Lan CrossFuses to battle with Tesla while Fyrefox sends MoltanicMan inside Thirty to prevent it from self-destructing.

Through Chaud's research, he knows more information regarding Colonel and his NetOp Baryl.[1] Meanwhile, a shift in time and space revives ShadeMan moments before LaserMan deleted him in Axess. He fights with Lan and Chaud, and Ms. Yuri helps, revealing that she, too, has a Crest of Duo. ShadeMan reunites with BubbleMan and begins their latest scheme to travel twenty years into the past, before the network was created, and overrun the world with Darkloids. MegaMan attempts to stop him but fails, receiving a painful bite on the neck as he falls.

MegaMan dives into the space-time tunnel and follows ShadeMan twenty years into the past. There, he encounters Colonel and teams up with him to save the future. However, the bite left by ShadeMan on MegaMan's neck infuses him with evil energy, transforming his soul into darkness. Lan rushes to connect with MegaMan again, hoping to install a VaccineChip and recover him. He does so just as ShadeMan is deleted, and MegaMan manages to stop his plan, returning the present time back to normal. As MegaMan returns to his time, the dark energy separates from his body and vanishes.

Shanka, a girl from Dingo's tribe, requests to return a stolen totem pole back to her village when it's discovered in a museum. However, Viddy and Inukai steal the totem pole along with other rare items, so Lan, Dingo, and Shanka work together to recover the ancient relics. In the end, Dingo receives the Crest of Duo.

Jasmine returns to DenTech City to take care of an injured dolphin named Hoshi (meaning "star"). Hoshi was injured when being used by the Neo WWW to smuggle DarkChips. Lan, Yahoot, Dex, and Jasmine team up to defeat Inukai and SavageMan in their latest schemes. In the end, Jasmine receives the Crest of Duo.

At a convention center, a Ms. Tiara contest is held with a chance for girls to win a golden tiara, and many girls from DenTech City enter. A rivalry quickly builds between Maddy and Tesla. Tesla attempts to steal the tiara, so Charlie appears to intervene, and all of the girls aid Lan in Neo WWW's defeat. Ms. Mari ultimately wins the contest, and both Charlie and Tesla receive Crests of Duo.

MegaMan has startling dreams where he murders his NetNavi friends, and he becomes nervous when he learns his friends were injured the night before. Though MegaMan's system tests normal, MegaMan begins causing mischief, leading to his eventual arrest. After an emotional separation, Lan realizes that he isn't MegaMan, and the NetNavi unveils himself as Dark MegaMan. The real MegaMan has been captured by Darkloids CosmoMan, LarkMan, BlizzardMan, and CloudMan. Ms. Yuri helps Lan rescue his NetNavi, and ShadowMan even reappears to assist. The Darkloids thus escape.

Dr. Hikari researches the Crests of Duo and discovers that those marked with it have higher synchro-ratings, meaning CrossFusion is more possible with them. Meanwhile, Yai is planning a fireworks party, so she urges Lan to bring Fyrefox and Mr. Match to help with the festivities. However, BlizzardMan and CloudMan attack with orders to delete MegaMan, and they transform the hall into a raging blizzard. Lan, Dex, Mr. Match, Dingo, and Fyrefox all team up to overcome the Darkloids, and Fyrefox is able to delete BlizzardMan in the real world using a firework dispenser. Fyrefox thus receives the Crest of Duo.

Lan introduces Maylu to Jasmine, but she quickly becomes jealous of the relationship the two have developed. Having been marked by Duo, Lan and Jasmine can see Duo's comet, but Maylu cannot. Likewise, Meddy and Roll compete for MegaMan's affection. Meanwhile, a fortune-teller named Romeda wants to make a huge prediction, so her NetNavi Asteroid NovaMan causes a meteor to come crashing down towards Earth. Maylu intervenes and helps Lan defeat NovaMan and stop the meteor. Together, they stand and watch Duo's comet, signifying Maylu too received the Crest of Duo.

Neo WWW calculate a plan to prevent the creation of Dimensional Areas. SavageMan destroys the Sci-Labs's Dimensional Generator, but the attack deletes SavageMan and hospitalizes Famous. Then, because of a solar eclipse, receiving Dimensional Area signals from across seas is impossible, and Neo WWW begins their attack with Lan unable to CrossFuse. The original WWW teams up with their old leader, Dr. Wily, to devise a plan against the Neo WWW. They prove victorious, and VideoMan is also deleted.

Lan and Maylu visit an orbital elevator that reaches into space. Once there, however, they become entangled in Tesla's next plan as she hijacks the elevator. Lan and Maylu use CrossFusion to battle DesertMan and FlashMan, succeeding in the deletion of both. As the final Neo WWW members are arrested, Tesla suddenly vanishes, and her four subordinates' memories are erased. Dark MegaMan has taken Tesla hostage in her own hideout.

Dark MegaMan's Darkloids invade NetCity and then retaliate against Lan in the real world, destroying his SynchroChip. To have it repaired, Lan travels to Sharo's CrossFusion Research Institute where Dr. Hikari is stationed. Along the way, the Darkloids attack again, but Lan is rescued by Raika and Charlie, and he is surprised to discover that Charlie has now CrossFused as well.

The Darkloids take over a large excavation machine and begin rampaging through Sharo. In order to stop them, the CrossFusion Members join together, including Raika, Charlie, Dingo, Jasmine, Princess Pride, and Fyrefox. While they battle, Lan's SynchroChip is stolen by Dusk, ShadowMan's NetOp. Ms. Yuri and SpikeMan intervene and Lan recovers the chip, but as Dusk escapes, he receives the Crest of Duo. The Darkloids escape, and it's revealed that Dr. Regal is commanding the Darkloids.

Dusk is an assassin commanded to delete MegaMan, but he hesitates for the Crest of Duo marks him as Lan's ally. Meanwhile, a bank robber similar to Dusk named Kawase uses Asteroid SwordMan in his crimes, so Lan and Dingo intervene. Dr. Wily offers Dusk the opportunity to live his own life outside of hired assassin work by giving him a SynchroChip, and with it, Dusk CrossFuses and rescues the boys.

Dr. Hikari and Famous bring the CrossFusion Members together at the beach for special training, but the training session is really just a relaxing vacation in the sun to help calm their nerves. Yai and Anetta also attend, as well as the original WWW members. The gang ends up exploring a haunted house, and Maylu continues to fight Jasmine for Lan's affection.

The CrossFusion Members meet with Chaud to explore ancient ruins discovered in Netopia which bare Duo's symbol. Inside, a holographic image tells of an alien race that travels to planets via Duo's comet and destroys civilizations that are deemed dangerous. Slur becomes enraged that the heroes have discovered the past of her race and commands the destruction of the ruins. The children barely manage to escape in time.

The CrossFusion Members formulate a plan to infiltrate Neo WWW's hideout and rescue Tesla. Also, the member's Crests of Duo have mysteriously faded away, the first three victims being Chaud, Raika, and Princes Pride. Count Zap also assists Mr. Gauss in the rescue of his niece. To pass security, the members must scan their hands. But once inside, the Darkloids Cloudman and LarkMan attack. Battling up to the top, they reach Dark MegaMan, who reveals that Mr. Gauss tricked the members into the tower in exchange for Tesla. The hand scans gave Dark MegaMan the data that rested within Duo's Crests. As the members escape the tower, Tesla CrossFuses and vanishes.

Charlie is startled to discover Tesla has been sleeping in his apartment. Meanwhile, Dark MegaMan lures Ms. Yuri into a trap to steal her Crest of Duo. When she refuses to comply, Dr. Regal then appears and steals it himself. Lan, Charlie, and Tesla battle with the remaining Darkloids, deleting CosmoMan and forcing Dark MegaMan to retreat. Dr. Wily explains that Dr. Regal needs the data within the Crests of Duo to achieve access to the power within Duo's comet. Dr. Regal has planned such a thing for decades as he had already taken Baryl's Crest twenty years ago when Baryl was alive.

The Asteroids begin invading Earth, and the CrossFusion Members fight to ward them off. However, until Slur is defeated, the numbers will only grow, so while the members battle the Asteroid invasion, MegaMan, ProtoMan, SearchMan, and Colonel jack-in to take Slur down themselves. However, their efforts are futile, and Slur easily overcomes them on her own.