Co-op campaign levels require you and your partner to use both portal guns to solve puzzles.
Every level of the game offers you to experience testing of different puzzle-solving techniques, so there are no repetitive gameplay elements. The second tells a separate story of two robots Atlas and P-body. In the first mode, you play as Chell and experience the main campaign. You can play the game solo or in cooperative with a friend. For the ease of play, portals are made visible through obstacles. If Chell dies, she returns to the latest checkpoint. You can only receive penalties for getting into bottomless pits or toxic waste products. In the game, you cannot die from falling on the ground. This tool allows you to create two portals to enter in one place and exit in another. Portal 2 gameplay is based on solving of perspective puzzle games using a portal gun. During the game you will see new levels and aged chambers from the original chapter.
Unlike the original chapter, in this game, you will see not only clear white test chambers but also abandoned dirty and verdurous ones. You have to travel through testing facilities solving multiple dimensional puzzles using a portal gun. Portal 2 is a 1st person 3D puzzle game by Valve Corporation.
