Gorillamon is minor villain in the Digimon series. He resembles a gorilla-like Digimon with a cannon for his left arm
Digimon Adenture 02
Gorillamon first appeared under the control of the Dark Ring by the Digimon Emperor. Digitamamon attempted to stop him, but was knocked away. Togemon and Seadramon defeated him and freed him from the Dark Ring's control.
Digimon Tamers
Gorillamon once fought Terriermon in Henry's video game, and lost to Terriermon. He killed several innocent Digimon and aborbed their data in order to get stronger. Then Gorillamon Bio-Emerged into the Real World to fight Terriermon again as revenge. Guilmon joined the battle as well. Then Terriermon destroyed Gorillamon once again, but Henry didn't want Terriermon to absorb his data.