Portal Gun

The concept of Infinite Dimensions and the Multiverse underpins the weapon's mechanics. It's based on the idea that the cosmos is not a single space, but an endless, branching structure.
The Infinite Multiverse: Infinite dimensions and parallel realities coexist at the same instant. For every choice, quantum event, or insignificant detail, the universe splits into identical, slightly different, or completely unrecognizable strands.
Variable Laws of Physics: While some dimensions possess a geography identical to their origin—changing only minor historical events—others operate under entirely alien laws of physics. It is possible to find realities where matter is liquid, where time runs backward, or where life evolved from non-organic elements.
Infinite Variants: In practical terms, infinity guarantees that everything that can exist, exists somewhere. There are utopian dimensions with unlimited resources, realities devastated by wars, or absolute voids composed only of vacuum and dark matter.
Navigation and Coordinates: The portal gun doesn't create new worlds; it functions like a "dimensional radio." The device's panel translates the quantum signature of each dimension into a sequence of digital coordinates, allowing the user to tune in and isolate the exact reality they wish to go to amidst the infinite chaos.

Visual Description
The portal gun is a portable and robust device with a matte metallic finish and an ergonomic rubberized grip. At the top of the casing is a reinforced, transparent glass bulb housing a bright, highly volatile lime-green fluid that bubbles gently even at rest. A small digital panel attached to the rear displays dimensional coordinates, while a rotary dial next to the screen allows for calibration of the target reality. The front features a reinforced conical emitter surrounded by energy focusing rings.
Operating Mechanism
The device operates by manipulating the spatiotemporal tissue through the fluid contained in the superior medulla oblongata.
Microcrack Reaction: When activated, the weapon extracts a tiny fraction of the energy fluid and channels it into the internal compression chamber.
Particle Acceleration: The internal system accelerates these particles to relativistic speeds, generating a concentrated discharge of interdimensional radiation.
Portal Opening: The released energy breaks through the spatial barrier on the focused surface, creating a stable circular tear lined with a liquid, green membrane. This membrane instantly connects the current location to the coordinates entered on the panel.
Instructions for Use
Destination Selection: The user adjusts the desired coordinates by rotating the dial until the specific reality or location appears on the digital panel.
Grip and Aiming: Hold the device firmly by the grip, pointing the conical emitter at a flat surface — such as a wall, the floor, or even clean air.
Firing: When the main trigger is pressed, a bright beam is instantly projected, expanding into an oval slit of floating green energy.
Crossing: The user crosses the portal immediately. The quantum tunnel remains open for a few seconds before destabilizing and closing automatically, leaving no trace of the passage.