Chapter 1: The Courtesy Call Chambers 01 to 06Īs you can tell, you still do not have your Portal Gun. These include: using the momentum of portal movement to make jumps to open positions like ledges tractor beams and special propulsion/repulsion gels that can be carried or stored. In addition to point-to-point movement through portals, players can also utilize other means of movement of themselves and various objects. The game also requires the player to solve puzzles at times to clear sections of levels. The portal gun creates temporary passages through solid surfaces, allowing for creative platforming and multiple possible means of clearing a level. Set in the test chambers of the facility your goal is to make your way through the game levels using your portal gun (the Aperture Science Handheld Portal Device). In the single player campaign players assume the role of Chell, a former test subject trying to gain her freedom from the Aperture Science facility and GLaDOS, the AI controller of the facility. Like the original game, Portal 2 is a first-person Platform-Puzzle game.