YMMV / Colossatron: Massive World Threat

• Goddamned Bats: Sabotage Drones will latch onto Colossatron's cores and disable them while dealing constant damage. They're mainly disruptive, as they have rather low HP and are easily destroyed.
• Demonic Spiders: The bomber planes. Their explosives do huge amounts of damage — way more than the other enemies do — and they drop loads of them on Colossatron.