Means 2 things:
1) A weapon under development. Used against a giant robot clawing the Pyramids of
Giza.
2) Ability that can fire straight electric shots, with anything iron-made as head.
3) A tomboyish woman who loves wearing boylegs, loves a frog mascot, has more than 20,000+ clones and fell in love to an
unlucky bastard named
Touma.
1) Rail Gun is a futuristic weapon.
2)Agent: I want a
prototype weapon called a Rail Gun.
Ship Captain: That's classified.
Agent: Don't talk to me about CLASSIFIED!
3) A Rail Gun shot was
deflected once again by the UNLUCKIEST BASTARD on Earth.