Giant Rats Friends

A sea dwelling mutation that feed on Mutant Giant Squid and their captured prey until Zilla Jr. killed them all. He/she is probably a mutant cuttlefish.

The original Zilla resurrected by alien and human technology. He is completely controlled by the Tachyons, though he does recognise Zilla jr. as his son.

A giant mutant worm. Lots of heat can make it shrink.

A giant mutant King Cobra that spits out venomous globs that double as a type of glue immobilizing both enemies and prey alike.

A alien race that landed on Earth sixty-five million years ago they breed several monsters at the time before going dormant. In the modern era they have awaken and plan to conquer Earth.