The Buratsche-al-Ilgs is an amorphous lake monster from Swiss folklore.
The Buratsche-al-Ilgs resembles a large shapeless sack, most often compared to a walking stomach. Its body is coated with eyes that produce flames, producing a distinctive and terrifying display. The creature was said to have escaped from a gateway to hell in the Luschersee lake in Switzerland.
Although no specific encounters with the Buratsche-al-Ilgs are recorded, the creature was apparently dangerous to humans, as fishermen would avoid the areas where it was seen, shepherds kept their flocks from the beast's territory, and parents would warn their children away.
The Buratsche-al-Ilgs appears as a cryptid in the animated television series The Secret Saturdays.