Once Doppelganger creates a giant concrete kaiju, my first question was “Why doesn’t Mikoto just do the same thing with metal?” She then smirks and proceeds to do just that, answering another question in the process: “What if Mikoto went pretty much ALL out?” Seeing the Railgun’s sheepish grin at the prospect of having to up her game a couple of notches, and then doing so, ranks right up there among her best and most badass moments.
Misaka Mikoto isn’t someone who isn’t sure about herself or her abilities; on the contrary, it’s almost scary how quickly she can power up to the point her colossal electro-iron-sand puppet is railgunning huge holes in Doppel’s rubble puppet (ruppet?). It’s just too bad the kaiju battle is a feint. Doppel’s true target is the stealth dataship, which she locates thanks in part to all the iron sand Mikoto sends into the atmosphere taking out all of the gas tanks Doppel tries to toss at the populated part of the city.
Things even get a bit Evangelion-esque when Doppel pulls out another party trick: the ability to spontaneously generate enormous masses of matter in a similar manner to slime molds and zombie ant parasites. She uses a gigantic clone of herself to grab hold of the airship and render it visible. At this point the real Kuriba Ryouko pleads with her mechanical double for just “two more months”, whereupon she’ll be able to eradicate her own soul and allow Doppel to take over her body fully.
The thing is, Doppel is no longer interested in Kuriba’s body, or in simply existing as an individual anymore. Kuriba falls off the airship, but the Scavengers chip in to locate and pluck her out of the air; Leader’s thank you to Mikoto for her earlier assistance. She uses her ability to serve as spotter for Mikoto as Doppel attacks her with more slime mold-esque clones.
Bottom line: Doppel wants revenge against humanity, beyond simply destroying her creator. By the way, she’s ready to do that and level the city thanks to rigging twenty huge fuel tanks in strategic locations. Having been taught emotions by the researchers, she can’t help but feel envy and hatred to humans.
Mikoto’s answer to this threat is to fire her Railgun directly at Doppel’s core body, but Leader ominously warns Mikoto—albeit too late—that there’s a problem with her line of fire. Doppel is consumed by the light from the railgun blast…but that’s as far as the episode takes us.
With a preview full of Railgun’s friends and frenemies, I imagine Doppel is either destroyed or otherwise neutralized—but we’ll see what cost is incurred as a result. Until then, this will go down in the annals of all-time best-looking duels, and as always it’s an absolute delight to watch Mikoto do her stuff.