List of non-kaiju monsters

Mutants

 * Mutant Rat
 * Mutant Mouse
 * Mutant Rabbit
 * Mutant Bat
 * Cazador
 * Bloodbug
 * Boom Bug
 * Wanamingo
 * Rotfish
 * Fog Crawler
 * Mutant Dog
 * Mutant Cat
 * Mutant Spider
 * Mutant Dragonfly
 * Mutant Pike
 * Mutant Centipede
 * Mutant Millipede
 * Mutant Leech
 * Mutant Lamprey
 * Mutant Bee
 * Mutant Wasp
 * Mutant Mole-Rat
 * Mutant Naked-Mole Rat
 * Mutant Lobster
 * Mutant Crab
 * Mutant Hermit Crab
 * Mutant Shrimp
 * Mutant Mantis Shrimp

Humanoids

 * Cyborg 009
 * 009-1
 * Casshan
 * 8 Man
 * Sentai Daishikkaku
 * Shadow Lady
 * Titan
 * Gatchaman
 * Astro Boy
 * Bay Max
 * Microsuperman
 * Omega Man
 * H-Man
 * Human Vapor
 * Telegian
 * Hollow Man
 * Shrinking Man
 * Colossal Man
 * 50 Foot Woman
 * Eat Man
 * Skull Man
 * Devil Man
 * Zetman
 * Guyver
 * Human Torch
 * Invisible Man
 * 4D Man

Aliens

 * Eel (The Big O)
 * Arachni-Lobster
 * Demogorgon
 * Death Angel
 * Shambler
 * Vore
 * Chitauri Leviathan