PS4 NieR: Automata E3 2016 boss battle gameplay A boss battle on a train. Square Enix debuted a three-minute boss battle gameplay video from NieR: Automata during its E3 2016 live stream. The footage shows 2B, the main playable character and an all-purpose battle android, battle alongside 9S, an android that specializes in investigative purposes, against an opera-singing robot.NieR: Automata is due out for PlayStation 4 in early 2017. If you missed it, catch the E3 trailer here and some additional gameplay footage here. Watch the footage below.