"Damn, that's a cool gun", said every gamer ever upon their first encounter with a laser weapon.
Whether it was Dead Space's plasma cutter or Metroid's power beam, guns that shoot pure energy are innately more terrifying than their projectile-based counterparts; that lack of "BANG", the lethal accuracy, the distinct lack of bullet holes. How can light do that?
One person to ask is YouTube project builder styropyro - a man with a disconcerting obsession with laser-based weapons (we hesitate to call them "toys").
Using entirely legal diode arrays and lithium batteries, his latest creation is a 40 watt laser shotgun/rifle/beam weapon.
We're pretty sure this is how supervillains get started...