Algodoo

A and D to aim, W to shoot. This gun has limited capacity, though. Part of it will glow bright red when it is fully charged and fade to dark gray when the charge is depleted. It recharges over time. A full charge holds about thirteen shots.

As with all of my scripted guns, this one is totally phunlet-safe, I'd like credit if you use it, and you can press L to destroy spent ammo if it gets laggy. These projectiles disappear when they hit something, but they are not destroyed.

And yes, I could make it as powerful as I want, but I tried to scale its size and power for human-size targets.