YMMV / G.I. Joe vs. the Transformers

• Complete Monster:
  • G.I. Joe vs. the Transformers II, written by Dan Jolley: Shockwave is a coldly ruthless Decepticon who assumed control of Cybertron after the disappearances of Optimus Prime and Megatron, and now rules it with an iron fist, crushing any rebellion against him. Scheming to invade Earth, Shockwave successfully turns the planet into a warzone, killing billions of humans and keeping countless more as slave labor who he routinely executes by the dozen when they fall behind in their workloads. When the past is altered and Earth is saved from this invasion, Shockwave instead attempts to bring about a time fracture upon Earth, bathing the planet in nuclear fire for decades and wiping out all life on the planet so he can then gut the planet of its resources, and planning to keep human survivors as experiments for him to vivisect.
  • Black Horizon, written by Tim Seeley:
    • Unicron is the Chaos Bringer, a planet-sized Transformer that devours entire planets and keeps thousands of survivors as tortured, mind-altered slaves inside his body until they die and he replaces them with new victims. Having devoured countless planets over millennia, Unicron struck a deal with Cobra-La on Earth that he would spare the planet for a few centuries until there were billions of humans populating it, at which point Unicron would return and consume them all, leaving the barren husk for Cobra-La to rule. When the G.I. Joes and Transformers try to stop Unicron as he causes natural disasters worldwide and kills countless people, Unicron sics his "antibodies" on them, gleefully boasting his plans to slowly eat them all alive in the same fell swoop that he consumes Earth.
    • Golobulus is Unicron's agent on Earth, ruling over Cobra-La and using his forces to scheme for Unicron's return. Capturing and twisting several Transformers into his monstrous slaves, Golobulus uses them to slaughter anyone who tries to uncover his plans, and even takes humans captive to be kept as tortured pets. Threatening and abusing his own people should they fail him, Golobulus, believing humanity to be a blight upon the Earth, summons Unicron to Earth to wipe out the entire race so that himself and Cobra-La can reign over the planet, and tries to brutally kill the G.I. Joe soldier Firewall as a "sacrifice" to Unicron in celebration of the genocide of humanity.