A super electromagnetic gun. An application of Fleming's kinetic momentum theory. Making even something of this size…

(Launches railgun) Into a projectile O.P. AS FUCK!

 MISAKA: (Running) OH SHIIIIIIIT! (TOUMA: (Running) FUCK FUCK FUCK FUUUCK! I NEW THIS SHIT WAS GONNA HAPPEN!) MISAKA:(Running) IF YOU DID, WHY DIDN’T YOU TRY TO STOP ME!? (TOUMA: (Running) OH GO SUCK A DICK!) MISAKA: (Running) MEET ME AT MY PLACE! (TOUMA: NO!)

Hey, jackass. - (Calling out to TOUMA) Yo, dumbass!