* [[Machina]]
* [[Machine King (series)|Machine King]]
* [[Magnum Overlord]]
* [[Mecha Phantom Beast]]
* [[Meklord]] (and sub-archetypes)
* [[Supercolossal]]
* [[Superheavy]] / [[Superheavy Samurai]]
* [[Supreme Magnum Overlord]]
* [[Symphonic Warrior]]
* [[Tentacluster]]