A mysterious Digimon clad in a red mask. Ninjamon wanders the Digital World while training. Focusing on covert operations, it hides in forests and underwater, making it rather difficult to spot. Although it differs in school and doctrine from Deputymon of the Virus Busters, they have been comrades-in-arms and friendly rivals for a long time. Its special move Iga-Style Shuriken Throw utilizes massive shuriken.
