Enforcer

The Enforcer (執行者) is an Omegamon Zwart D and is completely shrouded in mystery. Shoma Tsuzuki later names him Noir (ノワール).

Fiction
The Enforcer is a Digimon that is responsible for keeping the Digital World free of any and all illegal data or entities that should not be there. However, Taomon notes that the Enforcer is not working as it should, as it hadn't turned up to remove Takuto/Shiki or the other humans from the Digital World. After testing this theory by planting an Illegal Seed and letting it flower, this theory is confirmed.

He later appears in Server Desert, destroying the Machinedramon converging there and attacking the protagonists. The protagonists discover that it is under the influence of the BH Program itself, explaining its deviancy.

It is revealed that as the Enforcer, it is key to Project Reincarnation, as it holds the power to deconstruct the Digital World. After it attacks the protagonists at Bony Resort, it is defeated and the protagonists prepare to take it back to Floatia, but Shoma Tsuzuki intervenes and takes the Enforcer to an unknown location, revealed to be the Singular Zone.

The Enforcer is next seen in the core of the Infinite Cauldron, where Shoma reveals that it is the core of the AR Plan; after seeing Yukimura succumb to the BH Program and then Digivolve into SkullGreymon, he needed to 'break' the Enforcer in a similar manner, resulting in its Ultimate Altered Digivolution into Omegamon Alter-B. This form is defeated, however, and after the battle is cleansed of the BH Program via Mameo's antivirus. The Enforcer is brought to Floatia and placed inside Project Reincarnation, and while there are concerns of its altered form affecting the process, it proceeds without problems.

After the Digital World is remade, the Enforcer is reborn and eventually Digivolves back into Omegamon Alter-B, this time free of the BH Program. It then becomes Shoma's new partner and is renamed Noir.

Omnimon Alter-B
Omegamon Alter-B is the Enforcer's digivolved form. It was reached through Ultimate Altered Digivolution.

Attacks
 * Transcendent Cannon/Supreme Sword (Grey Cannon & Garuru Sword): Launches consecutive attacks from the Garuru Sword on its right arm and the Grey Cannon on its left arm.