Visit new areas of the Aperture Science Labs that have never been seen before and meet GLaDOS once again, that charming murderous computer companion that guided you through the adventures from the first Portal game. If you play the game alone, you can expect to meet a cast of new humorous and unforgettable characters, new and challenging puzzle elements that will put your brains to the test and a varied number of new test chambers. There is a single-player campaign that is completely separate from the co-op campaign. Innovative and incredibly complex gameplay, an unfolding story, one of the best musical scores ever created for a video game, and more make Portal 2 an experience that you don't want to miss out on. The game was developed and published by Valve on April 19th, 2011. Outlines of placed portals are visible through walls and other obstacles for easy location.Portal 2 is hailed as one of the best co-op games ever created that lets you and a friend play as two robots that have to solve various puzzles with guns that can create portals. Characters can use these portals to move between rooms or to “fling” objects or themselves across a distance. The player must solve puzzles using the ‘portal gun’ or ‘Aperture Science Handheld Portal Device’, which can create two portals connecting two distant surfaces depicted as matte white, continuous, and flat.
The initial tutorial levels guide the player through the general movement controls and illustrate how to interact with the environment. While most of the game takes place in modular test chambers with clearly defined entrances and exits, other parts occur in behind-the-scenes areas where the objective is less clear. The goal of both campaigns is to explore the Aperture Science Laboratory-a complicated, malleable mechanized maze. When Chell dies in the single-player game, the game restarts from a recent checkpoint in the cooperative game, the robot respawns shortly afterwards without restarting the puzzle. There is no penalty for falling onto a solid surface, but falling into bottomless pits or toxic pools kills the player character immediately. Characters can withstand limited damage but will die after sustained injury.
These three characters can explore and interact with the environment. The player takes the role of Chell in the single-player campaign, as one of two robots-Atlas and P-Body-in the cooperative campaign, or as a simplistic humanoid icon in community-developed puzzles.
Portal 2 is a first-person perspective puzzle game. Jonathan Coulton and the National produced songs for the game. In the new cooperative mode, players solve puzzles together as robots Atlas and P-Body (both voiced by Dee Bradley Baker). In the single-player campaign, players control Chell, who navigates the dilapidated Aperture Science Enrichment Center during its reconstruction by the supercomputer GLaDOS (Ellen McLain) new characters include robot Wheatley (Stephen Merchant) and Aperture founder Cave Johnson (J. Portal 2 adds features including tractor beams, lasers, light bridges, and paint-like gels that alter player movement or allow portals to be placed on any surface. Like the original Portal (2007), players solve puzzles by placing portals and teleporting between them. The digital PC version is distributed online by Valve’s Steam service, while all retail editions were distributed by Electronic Arts.
Portal 2 is a 2011 puzzle-platform video game developed by Valve for Windows, Mac OS X, Linux, PlayStation 3, and Xbox 360.