
This achievement is gotten when SCP-3199 is angered. SCP-3199's achievement is titled: "Do Not Disturb". SCP-3199 will then stand up, screech for a bit, and start chasing you unless you're at least two tunnel turns away from it.


SCP-3199 can be initially encountered when it is seen lying against a wall, massively damaged (seemingly, due to a large pool of blood around it), seemingly finishing off a dead human, presumably a janitor. It is recommended to flip the light switch in the Maintenance Tunnel and re-contain SCP-106 before trying to go in SCP-3199's containment chamber, or anywhere around SCP-3199. This door can be found in the maintenance tunnel randomly. SCP-3199's containment chamber can be accessed by a level 5 keycard at least. SCP-3199 takes ~200 bullets to kill by NTFs, meaning it is quite a threat to them, considering its extreme speed and killing capabilities. One very quiet breathing noise can be heard the closer you are to it. SCP-3199 will stop chasing you after 45 seconds approx., and after doing so, will maintain one position for ~25 seconds, where being around it will not make it angry. This is the only reliable way of getting away from SCP-3199. Getting away from SCP-3199 is very difficult, unless the super gas mask is worn.

SCP-3199 releases a very high-pitched and loud screeching noise when if it starts chasing you. Its texture is very graphic, containing bits of blood around its skin, large teeth, and a lot of screaming. SCP-3199 is relatively tall, just a bit taller than SCP-106.
