So. That is a gun that shoots lightning bolts. Please take a moment to process this.
Done? Good. Lets make this cooler.
First of all, ‘gun’ is a bit of a generous term for that thing in the video. It is roughly gun-shaped, true, but it doesn’t exactly aim well. A splattering of electric arcs in the air may look impressive, but it lacks the ability to hone in on a target. My suggestion? Stick a laser on it. Maybe one of these. The idea is to create a path of high-conductance plasma for the arcs to follow. Typically, these weapons rely on microsecond precision timing to produce the path and then immediately release the current from a capacitor. However, our Tesla gun++ need not be so limited. It could fire constantly and the laser could pulse to direct that fire when needed.
But wait! Couldn’t that also cause an arc back to the wielder of the gun?
So, perhaps it would be smart to build some kind of guard? Maybe a metal brace that is grounded through the device and catches stray arcs like a lightning rod. Perhaps along with a rubber glove to protect the user’s forearm.
Okay. I really want one of these, now. How hard could it be?
Keep tempting fate,