Mach - Cybertron
Mach (Reissue) - Cybertron
Mach (CD) - Micron
Mach (X-Dimension) - Micron
Mach (Change Micron) - Micron
Mach (Micron Booster) - Micron
Mack Kick - Cybertron Express Courier
Machtackle - Cybertron Air/Land Warrior
Machtackle (Reissue) - Cybertron
Mad - Micron
Magmatron - Destron Emperor of Destruction, Warrior
Magna Stampede - Autobot
Magnaboss - Maximal Combat Leader
Magnaboss - Cybertron Gestalt Warrior
Magnus (Crystal) - Micron
Mainframe - Autobot Systems Analyst
Makeshift - Mini-Con
Makeshift (Recolor) - Mini-Con
Makeshift (Transformers: Universe) - Mini-Con
Manta Ray - Autobot Ocean Defense Specialist
Manta Ray - Predacon
Manterror - Predacon Quick-Attack Specialist
Mantis - Cybertron Ninja
Marco (Beetle) - Animorph
Marco (Gorilla) - Animorph
Marco (Lizard) - Animorph
Marco (Tri-Rex) - Animorph
Material - Micron
Max B - Destron Bodyguard Captain
Mazda Type - Autobot Minispy
Mazda Type - Decepticon Minispy
Meanstreak - Autobot Street Fighter
Mechatron - Vehicon Assault Chariot
Mechatron (Repaint) - Vehicon Assault Chariot
Mega-Dinobot - Autobot
Mega-Octane - Decepticon Flatbed Truck
Mega-Octane (Wal*Mart) - Decepticon
Mega-Octane (Transformers: Universe) - Decepticon
Megalligator - Destron Emperor Of Destruction
Megabolt - Decepticon Emissary!

Megaplex - Decepticon Warrior / Clone
Megaplex (E-Hobby) - Destron Warrior/Clone
Megastorm - Destron Duke of Destruction
Megatron - Decepticon Leader
Megatron - Decepticon Decoy #32
Megatron (Action Master) - Decepticon Leader
Megatron (Generation 2) - Decepticon Commander
Megatron (Hero) - Decepticon Leader
Megatron (Go-Bot) - Decepticon Commander
Megatron (Machine Wars) - Decepticon Commander
Megatron (Black) - Destron Leader
Megatron (Smallest TF) - Destron
Megatron (RiD) - Predacon Leader
Megatron - Predacon Commander
Megatron (Tyrannosaur)- Predacon Commander
Megatron (Transmetal) - Predacon Commander
Megatron (Transmetal 2) - Predacon Commander
Megatron - Predacon Vehicon Leader
Megatron (McDonald's) - Vehicon
Megatron (Beast Megatron, Robot Masters) - Destron Emperor of Destruction
Megatron (Beast Megatron, Hyper Hobby) - Destron Emperor of Destruction
Megatron (Armada) - Decepticon
Megatron (Armada McDonald's) - Decepticon
Megatron (Built To Rule) - Decepticon
Megatron (Energon) - Decepticon
Megatron (Energon Energon) - Decepticon
Megatron (McDonald's Energon) - Decepticon
Megatron (Cybertron) - Decepticon
Megatron (Burger King) - Decepticon
Megatron (Legends of Cybertron) - Decepticon
Megatron Megabolt - Decepticon Emissary
Megazarak - Decepticon Warlord
Meister - Autobot Special Ops. Agent
Meltdown - Decepticon Aerial Counterattack
Menasor - Decepticon Super Warrior
Metalhawk - Cybertron Space Commander
Metroplex - Autobot Battle Station
Metrotitan - Destron Commander
Midnight Express - Autobot Train
Midnight Express (Transformers: Universe) - Autobot
Midship - Micron
Mile - Micron
Mindwipe - Decepticon Hypnotist
Minerva - Cybertron First Aid Care
Mir (X-Dimension) - Micron
Mir (Change Micron) - Micron
Mirage - Autobot Spy
Mirage - Autobot Decoy #20
Mirage (Go-Bot) - Autobot Counter Intelligence
Mirage (Machine Wars) - Autobot Counter Intelligence
Mirage (RiD) - Autobot
Mirage (KB Clear) - Autobot Race Car
Mirage (KB Recolor) - Autobot Race Car
Mirage - Decepticon
Mirage - Mini-Con
Mirage (Road Assault) - Mini-Con
Mirage (Wal*Mart) - Mini-Con
Mirage - Vehicon Warrior
Mirage GT - Autobot
Mirage-Bot - Autobot
Misfire - Decepticon Interceptor
Missile Master - Autobot Interstellar Defense
Missile Run - Cybertron
Missile Run - Destron
Missile Run (Berserker) - Cybertron
Mixing - Cybertron
Mixing (Reissue) - Cybertron
Mixing - Destron
Mixmaster - Decepticon Materials Fabrication
Mixmaster - Decepticon Decoy #46
Mixmaster (Generation 2) - Decepticon Materials Fabrication
Mol - Maximal Demolitions
Mol (Repaint) - Maximal Demolitions
Monocle - Autobot Mini-Con
Monstructor - Decepticon Super Warrior
Moon - Celestial Observer
Moonrock - Autobot Interstellar Defense
Motorarm - Cybertron Sumo Wrestler
Motorcycle Drone - Vehicon Mobile Infantry
Motorhead - Decepticon Mobile Assault
Motormaster - Decepticon Stunticon Leader
Motormouth - Autobot Backup Support
Mototron - Autobot
Move (X-Dimension) - Micron
Move (Change Micron) - Micron
Movor - Decepticon
Movor (Wal*Mart) - Decepticon
Movor (Transformers: Universe) - Decepticon
Mudflap - Decepticon
Mudslinger - Autobot Covert Activities
Mugen - Micron