A Certain Scientific Railgun Season 3 Episode 12 English Dubbed Episode Title:Exterior.Episode Description:Realising Gensei is trying to obtain the limiter unlock code for Exterior from her to control Mikoto further, Misaki attempts to trap him only to discover he possesses Multiskill, allowing him to us multiple abilities. Meanwhile, Kuroko begins to close in on Mitori, facing tougher opposition from the puppet. Misaki sets up a multi-phase trap to try and stop Gensei, but he manages to see through every step, ultimately managing to get past Misaki's mental defenses and obtain the code.