A-100 is the Fourth entity you will encounter in Interminable Rooms. It moves at a quick pace, being capable of covering the distance between it and the player absurdly quick, it is best to hide once hearing it. Upon spawn, A-100 makes a slight, distorted airhorn that can be barely heard. After spawn, it makes a loud, unnerving screaming sound, with silent whirring in the background.

A-100 functions like most Runners, beginning at the lobby and charging toward the most recent room. However, wha