Killer Queen is the stand of Yoshikage Kira, his ability being able to create anything into a bomb (Proximity, Detonation, etc) by touching it. He also has a tier 1 stand where he acts like a small tank that chases after heat, with a ability on his tier 2 stand to appear in the eyes of victims as a trap called "Bite the Dust". He is the same size as Kira Yoshikage, gloves (missing in Jojolion) and a loincloth with boots, sporting a medallion on them. He shows the appearance of a cat, with slanted eyes and pink slim with pointed ears. He has no emotion also, showing it is just a battle stand.

In Jojolion (Part 8) he has the same appearance but -gloves and his ability is similar when he teams with Stray Cat (Being able to create air Pocket explosives).