Millenniummon is a character from the Digimon video game series starring Ryo Akiyama, making a cameo in the Digimon 02 series. He is a synthetic-type Digimon that was created as a result of Machinedramon and Kimeramon DNA Digivolving for reasons unknown. He was also the final boss in Digimon Battle Spirit and Digimon Adventure: Anode/Cathode Tamer, while Moon=Millenniummon was the final boss in Digimon Adventure 02: Tag Tamers and Digimon Adventure 02: D-1 Tamers, and XeedMillenniummon, the final boss of Digimon Tamers: Brave Tamer and Digimon Tamers: Battle Spirit Ver. 1.5.