Оказывается Dopefish - отсылка к Дугласу Адамсу.
The Dopefish is originally an enemy from Commander Keen IV, designed by Tom Hall, a large green fish, prominently bucktoothed, and famous as the second stupidest creature in the universe (the first stupidest being the Ravenous Bugblatter Beast of Traal from Douglas Adams' The Hitchhiker's Guide to the Galaxy book series). Its thought patterns were described simply as "swim, swim, hungry, swim, swim, hungry"
doomwiki.org/wiki/Dopefish
@rf