Destoroyah grows quickly and adopts several appearances throughout the film, including his microscopic form, 3-mm form, insect-sized form, 2-meter form, 18-meter crab-like forms, a larger aggregate crab-like form, a bat-like flying form, and a bipedal 120-meter, demonic final form. He also has some of the same features as the aliens from the Alien franchise, such as the inner jaw. In all his forms, Destoroyah's exoskeleton ranges from bright red to a wine red/maroon tone, and in his later forms, his belly is bright red.

In their pre-mutated form, the microorganisms that would become Destoroyah resemble trilobites of the order Harpetida.

In his first form, Destoroyah resembles a tiny trilobite, with a flattened shell and multiple spiked protrusions emerging from its shell which vaguely resembles its later forms' head crests. This form is about a centimeter long, and was first observed consuming fish in an aquarium.

Its next form is approximately human-sized, and moves upon six crustacean-like legs. This form already sports a horned, crested head similar to that of the final form, but its mouth is insect-like with multiple sets of mandibles.

When attacked, the numerous individual juvenile forms merge together into the aggregate form, which is nearly identical to the juvenile form except much bigger. It now has a pair of spike-pointed arms emerging from its back, as well with two smaller carb like claws on both sides of the chest. An extra protruding jaw that can inject micro-oxygen.

Destroyah baby Kaiju 2nd form - 6 Dynamic PosesHi-Poly STL for 3D Printing

BABY DESTROYAH !! from the movie Godzilla vs. Destroyah

INCLUDES 6 DIFFERENT MODELS - ALL POSED DIFFERENTLY