SCP-106, nicknamed The Old Man, is an enemy in SCP: Containment Breach Nine Tailed Fox Mod.
It is a sadistic humanoid predator with corrosive, reality bending powers.
SCP-106 functions identically to how it does in the original SCP - Containment Breach, randomly spawning by rising from the floor and slowly chasing the player, despawning after a significant distance between the two is gained for an extended amount of time. It can also phase through anything and is invincible, but can be instantly despawned if it walks through active Tesla Gates. If SCP-106 touches the player, they either instantly drop dead, or are forced to navigate through its hellish, nightmarish pocket dimension they are unlikely to escape.
It can be contained by going to its containment chamber in the Heavy Containment Zone, opening its cell, turning on the intercom, breaking the Class-D's femur, and closing the cell once SCP-106 takes the bait.