Portal's portal gun, in Blade & Sorcery. Spawn the Aperture Science Handheld Portal Device from the item book (category Aperture) and play with portals using Blade & Sorcery's physics.
Classic Portal rules. The trigger fires blue and the alternate-use button fires orange. Portals open only on flat, static walls, floors and ceilings big enough for the whole oval, and slide to fit near an edge. A new shot replaces that colour's old portal.
Speedy thing goes in, speedy thing comes out. Thrown swords and daggers, enemies (they ragdoll through) and you keep your speed and spin from one portal to the other. Drop into a floor portal and you're flung out of the wall.
Really Portal's content. The gun's model and texture, the blue and orange portal look and every portal sound are read while you play from your own copy of Portal. Nothing from Portal ships with this mashup.
Single player. Needs Blade & Sorcery (PC VR) and Portal.