Main article: The Final Hours of Portal 2Īs mentioned in The Final Hours of Portal 2, Portal 2 stemmed from F-STOP, which originally was a prequel to the first game set during Cave Johnson's era. The Co-op campaign also contains whiteboards with writings found in images from The Potato Sack that are found in final test chambers and that are out of the testing track. The gameplay is very similar to single-player mode, with the addition of object-specific buttons and tools to aid in cooperative play, as well as 8 gestures. The developers implemented robotic characters in order to ease explanation of a respawning system, giving the story explanation that humans could not be trusted. The two players must work together to pass tests and areas outside the test chambers. The campaign features two characters, ATLAS and P-body. Combat plays a slightly larger role than in the last game, seeing as Chell is always meeting with enemies along the way.Ĭooperative play is a new game mode introduced to Portal 2. New gameplay elements such as Mobility Gels, the Aerial Faith Plate and the Thermal Discouragement Beam were implemented as means for the player to master in order to solve puzzles.Ĭhell no longer wears the Advanced Knee Replacement, but instead suited in the new Aperture Science Long Fall Boots. The gameplay of Portal 2 is based on its predecessor Portal, where the player, with the use of portals, solves puzzles. Wheatley (Second half of single-player).Caroline (Hidden portrait and voice only).Cave Johnson (Portraits and voice only).Wheatley (Intelligence Dampening Sphere).ATLAS and P-body (The protagonists for co-op).Chell (The protagonist for single-player).Main article: Portal 2 storyline Characters The game was shown in the form of a demo at Valve's own booth instead, and on June 15, the first Portal 2 trailer was shown during the Sony press conference, with the "surprise" apparently being its release on the PlayStation 3 console, which was originally not the case. Valve was also scheduled to unveil the Portal 2 World Premiere on June 14, at their E3 2010 press conference, but later canceled the showing of Portal 2 on the 14th through a humorous e-mail, to be replaced with a "surprise". The co-op campaign was said to have separate credits and would take place after the single-player story. In addition, Game Informer and other sources confirmed a co-op mode for up to two players with its own separate campaign. It was also confirmed that GLaDOS was indeed still alive, and would return as the main antagonist. Portal 2 was previewed in the twelve-page cover story of the April 2010 issue of Game Informer, revealing some plot details and new gameplay features.
#Atlas portal 2 update
First hinted in the update made to Portal in March 2010 as part of the Portal ARG, it was announced on Mato be released in fall 2010, but was later announced on June 9, 2010, as delayed until an unspecified date in 2011, until it was said to be released on February 9, 2011.
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