The information in this article is from the fan game s and is therefore not canon.
Medusa is a gorgon.
background[]
Medusa is a blind gorgon. Upon Medusa's death, she calls out for vengeance from her sisters as she is turned to stone by Gwydion. It is also possible to talk to her, while keeping your back to her. She says, she knows you are there, and asks where you are.
Behind the scenes[]
In KQ3 Redux, Medusa is replaced by the character Smaude.