Siriusmon (シリウスモン) is a Mega-level, Vaccine-type, Light Dragon Digimon.

A Digimon that is affiliated with the group of justice, the Virus Busters. Whenever it senses a voice crying for help or malice, even from far away, it will descend like a comet and bring down the enemy with the "Sylvia" composite cannon-blades equipped to both its arms. However, it is a kind-hearted being who brightens up everything around it such that if it senses a change of heart in its opponent during battle, it will lay down its arms and open up to them.

See also

• Fresh: Curimon
• In-Training: Gurimon
• Rookie: Gammamon
• Champion: BetelGammamon, KausGammamon, and WezenGammamon
• Champion (Dark Evolution): GulusGammamon
• Ultimate: Canoweissmon
• Mega: Siriusmon