Alias III

Alias III are a group of tamers chosen by Neo to stop Taichi. They each fight a one-on-one fight with Taichi stalling for time so that Neo could use Arkadimon.

Sigma
Sigma is a member of the Alias III and is the first member to fight Taichi and Zeromaru for Neo. His Digimon is Piedmon and their feelings are connected to each other. When Zeromaru was fighting Piedmon, part of his mask breaks off the same time as part of Sigma's mask. Taichi give Sigma the opportunity to quit the battle for Piedmon to be spared which Sigma is grateful for. When Neo found out, he ordered Arkadimon to fight Piedmon. Sigma is right behind a glass window with Neo unable to do anything. At the point of Piedmon's death, both Sigma and Piedmon screamed. Arcadimon absorbs Pie's data and digivolves to Rookie as Sigma is imprisoned in the dungeon. He later escaped with Rei and Mari and sides with Taichi to stop Arcadimon. He keeps his friendship with them.

Sigma's mask has a built-in speaker that is hooked up to his palm-computer so that it says what he types, making him very good at speed typing. He final spoke when the lower half of his mask was destroyed to ask that Taichi and Zero that they not harm Piedmon, when after the battle they try being friendly with him and talk he turns them down and leaves, but a few seconds after that he sends an e-mai to Taichi saying that he would think about it.

In the past he was too shy to speak up for himself, even when he found out that his "friend" was only using him he just keep smiling and taken it. When he discovered chatting he felt free being able say what he wanted and that no one knowing who he was made it easier, one day while chatting he got and massage from Neo say how his (Sigma) skills could be put to good use by helping him (Neo) to create a new digital world.

Piedmon
Piedmon is partnered to Sigma of the Alias III. At first, things looked bad for Zeromaru since the commands of Sigma proved to be better and quicker than the ones which Taichi was sending to Zeromaru. However thanks to the strong bond and trust between Zeromaru and Taichi, the duo was able to defeat Piedmon. After the battle both Sigma and Piedmon changed their behavior and returned to Daemon's castle. As punishment, Daemon had Neo Saiba fight Piedmon with the newly hatched Arkadimon. Despite being only a Fresh level Digimon, Arkadimon killed Piedmon by stabbing him and absorbed his data to digivolve to his Rookie form. Piedmon's death affected Sigma greatly.

Attacks
 * Masks Square: Piedmon creates a dimension which allows him to teleport himself and anything under his control.
 * Trump Sword: Piedmon summons various swords.

Mari Goutokuji
Mari Goutokuji is the second member of the Alias III to fight Taichi and Zeromaru for Neo. Her partner is Rosemon, and she kicks Ninjamon after he tries to attack her. She is then stopped by Rei who yells at her, and Rosemon is defeated by Zeromaru. She and Rosemon helped out in the final battle against Arkadimon, where Rosemon was presumed to have been killed. Mari still maintains her friendship with the others on her return trip to the Real World.

During her battle with Taichi and Zero she first appeared as a ditzy, flirty, bimbo talking about such things as that in the real world she is a kind of net pop idol and how that when Neo becomes king of the digital world she wold be his queen, but this is all an act she uses to distract others. She becomes very cold and almost sadistic when she drops her act going as far as stomping on and already injured enemy.

Rosemon
Rosemon is partnered to Mari of the Alias III. While Neo was leading Daemon's troops to Lord HolyAngemon's castle, Rosemon confronted Zeromaru as a diversion. Rosemon's personality was much like that of her Tamer. Before she appeared in front of Taichi and his friends she captured a [#Ninjamon|Ninjamon]] who had wanted to warn Lord HolyAngemon, and presented the badly wounded Digimon to the group. Although she acted foolish at first, she later showed her true fighting abilities and almost made Zeromaru her love slave. Zeromaru managed to fight off her seduction and defeated her. When Mari turned against Neo, Rosemon helped Omnimon in the fight against Neo Saiba and Arkadimon. She helped ensnare Arkadimon with her vines, but Arkadimon managed to break them and impale her. Rosemon, in her dying moment, ripped off the arm Arkadimon had impaled her with in order to give Omnimon a better chance of besting their mutual foe.

Attacks
 * Rose Velvet: Rosemon covers the ground in thorns.
 * Rosy Cradle: Rosemon summons a storm of roses to send her foes to sleep.
 * Thorn Whip: Using her whip, Rosemon ensnares her opponent and summons lightning to strike them.

Hideto Fujimoto
Hideto Fujimoto is a member of the Alias III and has two Digimon partners instead of one. They are Warg the WarGreymon and Melga the MetalGarurumon who can DNA Digivolve into Omnimon. Hideto is the third and final member of the Alias III to fight Taichi and Zeromaru for Neo after Sigma, Pie, Mari, and Rose failed. He blames himself for what happened to Rei (Neo also blames himself too). He is relentless to destroy Taichi and Zeromaru and it was that battle where he is shown the true meaning of friendship. He later helps out in the final battle against Arkadimon where Omnimon would have been killed if Hideto didn't have him De-DNA Digivolve. He keeps his friendship with the others in the Real World and his partner was the only digimon of the Alias III to not be deleted.

Omnimon
Omnimon is partnered to Hideto of the Alias III. Omnimon is made up of Warg the WarGreymon and Melga the MetalGarurumon. During the battle, Omnimon realized that Zeromaru was a good guy and lost the battle on purpose. This caused Hideto to switch sides. Later on, Omnimon fought Arkadimon when Neo dismissed the Alias III but was critically wounded and barely managed to flee with Hideto. Later he helped defend Lord HolyAngemon's Castle from an attack by Neo, where he again fought Arkadimon until Zeromaru took over. In the end, he is the only digimon of the Alias III who was not destroyed.

Attacks
 * Grey Sword: From his WarGreymon hand, Omnimon releases his sword and slashes with it. Alternatively, this attack could also be used as a long-ranged shockwave cut.
 * Garuru Cannon: From his MetalGarurumon hand, Omnimon readies a cannon which fires an immense blast of energy.