|Can be ridden||No|
|Can be hatched||Yes|
|Data needed / amount:|
Hagurumon is a Machine Digimon whose name and design are derived from the gear (歯車 Haguruma). It is a mutant Digimon shaped like a gear. There are countless gears built into its body, and the gears are constantly rotating. For that reason, if even a single gear is missing, all of the gears in its body stop rotating, and it becomes unable to maintain its vital functions. Hagurumon possesses the special ability to send a computer virus to its opponents in order to manipulate them at will, and that ability is exploited by fiendish Digimon. However, because Hagurumon itself doesn't have any sense of self, it doesn't even know it is being misused.
|→Lv. 11||→Lv. 25||→Lv. 41||→Lv. 65||(with Duo Solar Spear)|
|→Lv. 11||→Lv. 25||→Lv. 41||→Lv. 65||(with Hyper Cannon)||→Lv. 70||(with Free of Regression)|
|Guardromon||Oil Refinery-2||Levels: 34-38|
|Guardromon||Digimon Maze B2||Levels: 78-81|
|Andromon||Digimon Maze B2||Levels: ??|
|Andromon||Digimon Maze F3||Levels: 83-86|
|Andromon||Monster Card Lv4||Levels: ?|
|Andromon||Andromon Boss Card||Levels:|
|HiAndromon||Distorted Data Village||Levels: 61-65|
|HiAndromon||Monster Card Lv6||Levels: ?|
|HiAndromon||HiAndromon Boss Card||Levels:|
|[[MechaNorimon Boss]]||Digimon Maze F4||Levels: 84-87|
|Megadramon||Ruined Historic||Levels: 32-36|
|Megadramon||Digimon Maze F3||Levels: 83-86|
|Megadramon||Monster Card Lv5||Levels: ?|
A peculiar Digimon that resembles a gear. This Digimon is impervious to good and evil, so it tends to be used by bad Digimon. Ultimately, it will evolve into HiAndromon, a Cyborg type Digimon with autonomous thinking capability.
A peculiar Digimon in the shape of a saw toothed wheel. It is sometimes used by bad Digimons because there is no differentiation between good and bad. It's final evolutionary stage is Mugendramon.