Meltdowner

Meltdowner (原子崩し) is the psychic power possessed by Mugino Shizuri, the "Number Four" Level 5 in Academy City.

Essentially, electrons demonstrate the properties of either a "particle" of a "wave" in accordance with the circumstances. But this power can fix the electrons in the ambiguous condition that stand between these two and forcibly manipulated them. The manipulated electrons are then released as a white, sparkling ray of light that spread great destruction. This is formally classified as a high-speed particles wave machine gun. In addition, due the quality of "electrons manipulation", it can bend the trajectory of electricity. But conversely, the high-speed particles wave machine gun was also averted by Misaka Mikoto, who is a superior electrons manipulation Esper (Electromaster).

Because an "electron fixed in an ambiguous state" cannot become neither a "particle" nor a "wave", it has a property of "halt" in which is not influenced by reactions from the outside. By forcibly setting into motion this "electron fixed in an ambiguous state" - which has became a pseudo-"wall" due to the "halt" property - and throwing at high-speeds a unique beam of electrons that pierces through a target in the same velocity that it was fired, great destructive power is created. Convergence and fixation is possible and, after losing the left arm in the battle with Hamazura Shiage, the power was emitted in the form of a clawed arm from the left shoulder section. Naturally, it is extremely dangerous to touch that arm. But it is not completely devoted to attacking and defensive applications by expanding the power like a shield is also possible. Also, by emitting a power similar to a rocket, it can perform high-speed evasion that is fast enough to escape an explosion.

With its tremendous power, because there is the danger of self-destruction if even a single mistake is made, originally aiming must be done with care. In fact, on the occasion when careful aiming was disregarded due to anger, Mugino's own left arm was blown off at the moment of activation. That being said, in a situation of directly confronting an enemy, it has an accuracy high enough to blow away the members of the opponent before he can draw a gun and fire. By nature, it is incapable of rapid-fire, thus poor at surface occupation and saturation attacks, but Mugino compensates for that weakness by having large amounts of the tool known as Silicon Burn.

According with researchers, output is suppressed due the survival instinct's restrain, but if wasn't for that it could easily instant-kill the likes of the Railgun. However, because actually firing at such output would also blow away Mugino's body with the backlash, this assessment is not covered. Mugino herself understands that the whole "instant-kill the Railgun"-thing is just a poor excuse by the researchers and, for that reason, also harbours great hostility towards the Railgun.