Portal Gun (Handheld Portal Device) is a device that creates an inter-spatial portal (wormhole) in the level.
Portal Gun (Aperture Science Handheld Portal Device) is a device that creates an inter-spatial portal (wormhole) in level. It's an quaked conversion of the gun from game Portal by Valve software <www.valvesoftware.com>. Usage is simple: fire with the portal gun to the desired locations to open first and second portals. Now, the wormhole is created between them. You can enter it, or close it down. This mod tries to simulate (poorly) the physic as seen in original Portal game. That means, when you enter the first portal, your velocity and angles is reversed on the other side of wormhole. This allows you to do big jumps and other tricks.