The Hollowstar Gladiator Species were created early in the by the Gold King. They spanned a wide range of interesting ideas, and for a while they dominated the arena; however, it didn't take long for others to find ways to beat them. The manufactured monsters were released onto to provide a challenge for anyone who landed there, in a parody of the dangerous nature of Kelosian jungles. The gladiators were created as five basic species, each with the potential to transform twice into stronger forms.