Diaboromon

Diaboromon is a major villain in Digimon: The Movie. He is a computer virus monster with lanky arms.

Diaboromon was digivolved from an Infermon. He easily defeated WarGreymon and MetalGarurumon. But then they fused into the mighty Omnimon and destroyed Diaboromon.

Later in the sequel, Digimon Adventure 02, Revenge Of Diaboromon, Diaboromon returned for revenge. After he was defeated for the second time, he became Armageddemon and easily defeated Omnimon, but Imperialdramon fused with him and became his Paladin Mode to destroy Diaboromon once and for all.