Digimon: Revenge of Diaboromon (2001)
It's been three months since MaloMyotismon was destroyed. It was discovered by Izzy that Diaboromon wasn't destroyed and is sending many Kuramon into the Real World. As Omnimon fights Diaboromon, the others gather the Kuramon. When Diaboromon is destroyed again, he escapes into the Real World through the Kuramon and Digivolves into Armageddemon. Can the combined powers of Imperialdramon and Omnimon destroy Diaboromon when Omnimon couldn't?