Originally an enemy character from Apogee's "Commander Keen" series of videogames. The dopefish was slow, stupid, and always hungry. The dopefish is now a regularly occurring cameo and easter egg within other software, games, and even television shows.
Teh dopefish appears in Quake, Daikatana, and Max Payne
DOPEFISH. The second-dumbest creature in the universe, this creature's thought patterns go "swim swim hungry, swim swim hungry." They'll eat anything alive and moving near them, though they prefer heroes.
The dopefish ate Commander Keen and burped happily.
The coolest thing ever to happen to computer games; a funny green buck-toothed fish that gets everywhere, and you never get tired of it, bless 'im. First seen in the Shadowlands. Habitat: Wishing Well. Foods include veggies and small annoying space-travellers with yellow helmets. God bless the Dopefish.