Portal is a first-person action/puzzle video game developed by the Valve Corporation. The game was released in the bundle package The Orange Box for Microsoft Windows and Xbox 360 on October 9, 2007, and for the PlayStation 3 on December 11, 2007.
The Windows version of the game is also available for download separately through Valve's content delivery system, Steam and will be released as a standalone retail product on April 9, 2008.
The game consists primarily of a series of puzzles that must be solved by teleporting the player's character and other simple objects using the Aperture Science Handheld Portal Device ("Portal Gun" for short), a unit that can create an inter-spatial portal between flat planes. The player character is challenged by an AI named "GLaDOS" to complete each puzzle in the "Aperture Science Enrichment Center" using the Portal Gun with the promise of receiving cake when all the puzzles are completed. The unusual physics allowed by the portal gun are the emphasis of this game, and is an extension of a similar portal concept in Narbacular Drop; many of the team from the DigiPen Institute of Technology that worked on Narbacular
Drop were hired by Valve for the creation of Portal.
CHEATS
CCreate box
Press Down, Circle, X, Circle, Triangle, Down, Circle, X, Circle, Triangle during game play.
Level select
Press Left(4), L1, Right(4), R1 during game play.
Fire energy ball
Press Up, Triangle(2), Square(2), X(2), Circle(2), Up during game play.
UNLOCKABLES
Alternate title screen
Successfully complete the game to see the cake title screen.
ApertureScience.com login
The graffiti in the game are clues for the ApertureScience.com web site. Go to the site and enter LOGIN as a command. Enter CJOHNSON as a username and TIER3 as a password. After logging in, type HELP for a list of commands. In addition to logging in as "CJOHNSON" (Chell), you can login as anyone desired by typing a username longer than two characters and using PORTAL as a password.
ApertureScience.com hidden message
While logged into the ApertureScience.com site, type THECAKEISALIE to access an interesting message left by some employees.
GAMEPLAY HINTS
Chamber 18
At the end of the advanced map for Chamber 18, you will have the same raised platforms as you did in the normal one except now after you leave the lower one, it falls into the toxic water. This forces you to be more precise with your portal jumps. However, you can get past this easily. Do the platform jumping as usual, but if you miss just land on the platform you came out of. You should be able to fire an opposite color portal at the wall where you entered this area, allowing you to go back to the start. All the platforms rise again and the portal is still where you left it. You can now fall into the pit again and be able to portal jump to the next ledge. This take longer but does not require precise timing.
Overheating Xbox 360
Play the level where you face off with the laser guided robots. Once you get past the first few robots, you must start dropping the boxes on the robots heads so that they fall over. In the little place that you find the first two boxes, crouch and walk behind where the boxes were. You will find a little room with odd music playing and graffiti on the walls that says things such as "The cake is a liar". There also seems to be an Xbox 360 with a pot inside of it. The Xbox 360 is overheating and boiling the water.
Box head pictures
On the level where you get the companion cube after you run past the energy balls and are in the room with the three elevators, there are two doors leading to a catcher, and a platform that is pushed out of the wall. Walk up to the platform that is pushed out. Crouch behind it and walk through the opening. On the left hand side are a group of pictures of people with boxes for heads and hearts around them.
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