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Thermal Discouragement Beam - a fixed position laser that can be redirected by portals and aimed by portable optic cubes.Conversion Gel - Made out of moon rocks, this gel converts any surface into portal-able surface.For obvious reasons, this was also pulled from store shelves. Apparently, the gel was also marketed as a diet aid, as it "caused subsequently-ingested food items to bounce off the lining of the dieter's stomach and out his or her mouth," i.e.

Repulsion Gel - a rubber-like substance ejected from a dispenser that creates a trampoline effect upon surface contact.

The trailer states that this gel was first marketed as a diet aid, that "increased the velocity of any food that followed it through the digestive tract, leaving the body no time to absorb calories." Unfortunately, the product was pulled from store shelves when it was discovered that digestion plays an important part in the eating process.

Propulsion Gel - a kind of oil slick ejected from a dispenser that can be spread across surfaces via portals to enable fast running.

Excursion Funnel s - a kind of tractor beam that can be redirected by portals.

Aerial Faith Plates - pressure-triggered pads that launch objects in a particular direction with great force.

Mechanics Gels are new to Portal 2, and affect surfaces in many different ways. These are steadily introduced throughout single player and co-op, and have the capability to make these new puzzles more complicated than those introduced in Portal. While the most of the basic gameplay of the original remains intact, Portal 2 introduces a few new mechanics to freshen the experience. On November 6th, 2012, support for the PlayStation Move motion controller was patched into the game for free.

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The PC and Mac versions are also cross-platform compatible via Steam Play. It is also the first PlayStation 3 game to implement cross-platform compatibility via Steamworks (allowing cross-platform multiplayer with the PC and Mac versions, and Steam Cloud support for saved games).

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The PlayStation 3 version is packaged with a special one-use code that unlocks a free copy of the game on Steam for the PC and Mac. The Xbox 360 version also includes five avatar awards, including t-shirts, a hat, and an animated prop of the avatar wielding both the Portal Gun and the Weighted Companion Cube. Items can be gained by earning achievements by transferring special items from Team Fortress 2 or they can be bought from an in-game store, where players can purchase items or gestures with real-world money.Īll versions of the game include achievements for both single-player and multi-player campaigns. Players can customize their robot's appearance in the PC and Mac versions, similar to Team Fortress 2 this involves different customization slots (hats, skins, accessories, and special gestures) and an inventory system.

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Along the way, she receives help from a friendly personality core named Wheatley and explores the deepest depths of the laboratory, learning about the early history of Aperture through audio recordings made by the founder, Cave Johnson.Īs well as the single player story, the game also includes a unique two-player co-operative campaign, involving a series of team-based puzzles in this mode, each player controls one of two robotic characters: either ATLAS or P-Body.

Mute protagonist, Chell awakens to find the Aperture Science Enrichment Center, decayed and overrun by nature, as she must complete a new series of tests under the watchful eye of the hostile artificial intelligence GLaDOS (Genetic Lifeform and Disk Operating System). The story picks up many years after the events of the original Portal. The sequel plays out over nine chapters and builds upon the physics-based puzzles of the first game by including a variety of new gameplay mechanics, such as laser beams that can be redirected by special cubes, zero-gravity funnels that can be redirected by portals, launch pads, and paint-like substances that change the properties of the surface it covers. Portal 2 is a first-person puzzle game developed by Valve and published by Valve (for PC, Mac, and Linux via Steam) and Electronic Arts (via retail) it was released on April 19th, 2011. Overview Chell returns as the game's protagonist.