Olrox

Olrox is a Boss from Castlevania: Symphony of the Night. He is an ally of Dracula, and rules the upper part of the castle, named "Olrox's Quarters". In the reverse castle the area is called "Death Wing's Lair", which could possibly be an incorrect translation of "Dark Wing's Lair", which would be referencing one of the Reverse Castle bosses, the Darkwing Bat. To access his quarters, you need to wait for the left statue in the clock room to move. Once it does, you will need the leap stone relic to access that level and you will find a door and a life max up. Enter the door and you will be in Olrox's Quarters. First there is a staircase area featuring several skelarangs. Then there is the main area, featuring a door to the Colessium.