Arc

The Arc fires a continuous beam instead of individual shots. While the trigger is held, the beam grows out of the muzzle, locks onto the enemy closest to where the player is aiming, and bends to reach them. It damages everyone it passes through for as long as it touches them. When the trigger is released, the beam retracts back into the gun instead of disappearing.

Because the beam finds its own target, the Arc doesn’t need precise aim. However, a beam that bends sharply, for example around a corner, only does half as much damage as a straight one, so it’s best to face the target directly. The player is also slowed down while the beam is out, including while it retracts.