The Kurokinchū itself looks like a Coccinella septempunctata and like the Kikaichū, they have the ability to fly. These bugs carry all the abilities of the kikaichū, and are unique as they carry petroleum jelly in there bodies which gives them the mysterious Petroleum Release and have the ability to control oil. They have been kept secret from the for there dangerous skills of and speed. They are mostly unnoticed which gives them the advantage to crawl into the opponents body and eat their muscles and organs such as the heart, brain, lungs ext.