Monochromon

Monochromon
Monochromon is an Ankylosaurian Digimon that resembles a monoclonius. His horn is his pride. This horned dinosaur gores his enemies with the rushing power of his charge. When his horn grows, it reaches the size of the extent which is close to half of his length. His horn and the substance which covers his body are hard like diamond and cannot be pentrated. It is placid and herbivorous, but if it is upset, it draws out the power of his fearful strike.

Digimon Adventure
In the third episode the DigiDestined saw two Monochromon that surrounded them and the two Monochromon fought until they fell into the ocean. Another Monochromon pulled Etemon's transport while a bunch of them were seen outside of Datamon's Pyramid who got sucked into the vortex of Etemon's Dark Network with the Tyrannomon and Gazimon thanks to Datamon shooting his attack into it.

Digimon Adventure 02
A Monochromon was the first Digimon encountered that was under the control of one of the Digimon Emperor's Dark Rings. He attacked the DigiDestined when they found the Digi-Egg of Courage and chased after them when they fled. He then engaged Flamedramon in a fight and was freed from the Dark Ring by his "Fire Rockets".

Later on, Mexican DigiDestined Rosa's Gotsumon digivolved to Monochromon to fight Dokugumon and Minotarumon.

Digimon Tamers
A Monochromon was destroyed by Gorillamon in Henry's computer game.

Digimon Data Squad
According to SaberLeomon, a Monochromon was among the Digimon deleted by Akihiro Kurata's forces 10 years before the series. Another Monochromon appears in the stasis tube's in Kurata's lab.

Digimon X-Evolution
A herd of Monochromon are seen running from Omnimon and other Monochromon are seen as a part of Silphymon's rebel group.

Digimon World
Monochromon allows you to work in his shop. If you make enough money, he will say it was a test, and join your town.

Digimon World 2
Monochromon digivolves from Elecmon and can further digivolve to Vermilimon.

Digimon World Dawn/Dusk
Monochromon digivolves from BlackAgumon and can further digivovle into Vermilimon

Attacks  Variations / Subspecies 
 * Volcanic Strike (Volcano Strike): Shoots large fire balls from his mouth at his enemies.
 * Slamming Attack
 * Monochromon X
 * Vermilimon

Monochromon X
Monochromon X is a Monochromon which was affected by the X-Antibody

Attacks  Variations / Subspecies
 * Volcanic Strike (Volcano Strike): Shoots large fire balls from his mouth at his enemies.
 * Tomahawk Slash
 * Monochromon