Main protagonist of the [[Dragon Breed]] science fiction and [[fantasy]] arcade video game produced by [[Irem]] in 1989.

[b]King Kayus[/b] is the intrepid, brave and mature-beyond-his-years 15 years old new king of the Agamen Empire. 

He fights to save his world from the biomechanical mounstocities released when opposers of his enthronement conspired to break the seal confining the ancient King of Darkness, Zambaquous, to seize the kingdom with black power. Thus, wind was filled with miasma and the ground rotted, gradually turning Kayus' world into a land of dark monsters. 

The valiant Kayus arms himself with his combat armor and energy crossbow. He then invokes the help of the "[[Dragon]] of Light", [[Bahamoot]], to help him in his quest to defeat the darkness.
kayus