Species
Oxygen Destroyer-mutated prehistoric crustacean

Height
40 meters (Aggregate form)
80 meters (Perfect form)

Length
3 - 5 millimeters  (Micro form)
2 - 30 centimeters  (Crawl form)
2 - 18 meters (Juvenile form)
60 meters  (Aggregate form)
65 meters  (Flying form)
230 meters  (Perfect form)

Wingspan
80 meters  (Flying form)
210 meters  (Perfect form)

Weight
.5 grams (Micro form)
15 kilogram  (Crawl form)
350 kilogram - 260 tons (Juvenile)
15,000 tons  (Aggregate and Flying form)
80,000 tons  (Perfect form)

Forms
Micro form
Crawl form
Juvenile form
Aggregate form
Flying form
Perfect form

Emergence
Tokyo Bay

Control
None

Relation
None

Origin
A scientist named Dr. Daisuke Serizawa created a secret weapon known as the Oxygen Destroyer in 1954 when the Japanese military found a strange creature which they called a MUTO, he use his invention to kill both the monster and himself to secure that his plan and knowledge won't be used in the future of war as his of MUTO will die with him but give a few things to his son Ishiro but this event mutated a group of ancient crustacean from the Precambrian Era.

Power
Destoroyah can combine or seperate his body similar to Hedorah as they were microscopic then combine into an 8 ft tall monster then more to monster size, all of his large forms can use a Micro-Oxygen Beam, drain energy with their mouth for the Juveniles and Aggregate form while the tail for the Perfect form, a horn that generate energy called the Variable Slicer, have claws and pincers a few of it form, can fly in both flying form or perfect form, and unleashed a Stomach Beam on his chest.