Known illithid symbionts include the mnemonicus, wriggler, and carapace symbionts. They were led by the White Wriggler, who was shaped somewhat like Darth Vader's helmet. An article on "The Making of Wriggler" appeared in issue 114 of "Retro Gamer Magazine". Wriggler is based around maggot racing other maggots. Wriggler is a Spectrum and Amstrad maze game published in 1985 by Romantic Robot.