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. 2 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)