That's not a name.
I want names.
A-221 was the ninth and second-to-last entity within Section A, appearing a few rooms before A-246 — who is another removed entity. A-221 and A-246 were entities that were removed within the Entity Extravaganza Part 1 update, along with A-120 and A-183 who were later re-added in part two of the update. It is now replaced by A-245, who greatly differs from A-221's behaviour as it doesn't harm the player directly and only break the doors of lockers. It was the fastest entity that roamed the section before its eventual removal, emitting a heavily distorted car engine noise while speeding through the rooms various times.
Whenever it spawned, it would remain idle at the lobby of the Section before rapidly making its way towards the most recent room, where it will then rebound off the door and head back a few rooms, then turning around and rush to the last room again. This process of rebound would occur roughly 12 - 20 times before it would make its way back to the lobby and despawning — it would also gain more velocity with each rebound. Due to its extraordinary quantity of rebounds, this whole sequence would last approximately 45 seconds.
As of now, A-221 has no chance of returning to Interminable Rooms as it is often considered as merely a clone to A-183, mostly by the creator of the game, Zvardin.[1] This same decision applies to A-246, who will also not be returning.
A-221 had a somewhat basic appearance, only being a mouth bearing its teeth with crudely drawn scribbles for eyes, similar to A-200. It would also shake rapidly and the entity emitted a glow with a cyan-like-colored hue, identical to A-245.
A-221's mouth also appears to have similarities to its replacement, as both share the same source image for it.
Like any runner-type entity, A-221 can easily be avoided by hiding inside of a locker, a functional blue locker, table or fridge. A-221 will always never rebound more than 20 times, and will always rebound 12 or more times so it would be good to practice to count how many times the entity has rebounded.
A-221 will never rebound more than 20 times or less than 12 times. GlitchedSmile on youtube spawned A-221 in interminable rooms entity spawner by press a button and it rebounds 12 times.