Mekanorimon

Mekanorimon is a Machine Digimon. Mekanorimon is the romanization of MechaNorimon, which comes from mecha and "norimono", the Japanese word for transport.

They are known to be little more than a sort of tank, with the potential to be piloted. This has been confirmed by the fact that Gennai threw a Bakemon out of the one he hijacked. They might not always be piloted in the games/manga.

Digimon Adventure
When shown the history of the Digital World by an entity possessing Kari, some Mekanorimon and Guardromon were seen invading a building where the 8 DigiDestined's Digi-Eggs were being kept. A younger Gennai hijacked a Mekanorimon and took the eggs to safety. Some were in Machinedramon's city working for him. When chasing Tai, Agumon, Izzy and Tentomon, one collided its attack with a Tankmon's, destroying both of them.

Digimon Adventure 02
Some Mekanorimon worked for the Digimon Emperor. Three were lost in the Dark Whirlpool. The Digimon Emperor rode one out and encountered the remains of Devimon.

Digimon Adventure V-Tamer 01
A Mekanorimon was a resident of the Metal Factory and was quickly disposed of by Zeromaru prior to Taichi's first encounter with Neo Saiba.

Digimon World: Dawn/Dusk
Mekanorimon digivolves from ToyAgumon (Black), and digivolves to ExTyrannomon.

Attacks
 * Twin Beam (Twinkle Beam): Shoots a beam from the red circle on its chest
 * 4-Disk Break (Gyro Break)