All the giant larvae that appeared in the Tokyo Bay area were subjected to a freezing attack by the Self-Defense Force's Freezing Maser Unit, and were driven to the Ariake Clean Center, where their lives were in danger, and as a result, they gathered in one place and fused into one body.

By becoming even larger than when they were larvae, their power increased significantly, and their exoskeleton became stronger, so freezing weapons were almost ineffective. As a result, the situation turned around, and they started to advance, scattering the Freezing Maser Unit.

The appearance of the giant larvae has two long tentacles growing from its shoulders, scissor-like arms growing from its torso, and many large and small legs growing to support its body. The microoxygen in its body transforms into an oxygen destroyer, which is emitted as a beam-like oxygen destroyer ray (microoxygen beam) from its mouth. It also has the incredible jumping power to fly high into the sky, and sprays steam-like gas from all over its body. It can also transform into a flying object at will, and at that moment, it will first break down its body into golden particles and then reconstruct them.