The small E.S.R. Ships, more commonly known as “Jellies”, are shrunk down with 5 crew members inside. Each Jelly is operated by 1 pilot and 2 to 4 navigators. After the shrinking process, the Jellies are kept in a special liquid that is then inserted into the host’s eyes or mouth. From there they can travel throughout the body and remove all parasites. The host experiences virtually no discomfort during this process.