Manbomon

Manbomon is the Armor Digivolved form of Patamon through the Digi-Egg of Light. He resembles a manbo fish with arms.

Digimon 02: Michi E No Armor Shinka
Patamon became Manbomon to fight Pukumon when Takeru Takaishi ended up with Hikari Kamiya's D-Terminal.