Atlas and P-Body are bipedal robots who navigate five sets of test chambers together, each with a fully functioning portal gun. After completing a test chamber, the robots are disassembled and reassembled at the next chamber. After completing each set of chambers, they are returned to a central hub. The puzzles in each set of chambers focus on a particular testing element or puzzle-solving technique. In the first four sets, GLaDOS prepares the robots to venture outside of the test systems of Aperture Laboratories to recover data disks. She destroys them and restores their memories to new bodies—which also happens when they die in a test chamber hazard. At first, GLaDOS is excited about her non-human test subjects, but later becomes dissatisfied because the two robots cannot truly die. ▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪ Nominal ▪Follow me on Twitter: https://twitter.com/OfficalNominal ▪Follow me on Beam: https://Beam.pro/Nominal ... https://www.youtube.com/watch?v=gvTV9VmwvZ8

The DeLorean, thought to be destroyed, reappears, and Marty travels to the year 1931 to rescue a time-stranded Doc Brown, who has been accused of burning down a speakeasy and put in jail. To break him out, Marty must work with Doc's younger self to build a rocket drill (in the process, Marty gives a subpoena to his grandfather Arthur to arrest Biff's father Kid Tannen for his wrongdoings). Doc is suddenly moved to another jail, so Marty races after him on a rocket powered bicycle and frees him, but as they prepare to go back to 1986, Marty's hand suddenly begins to disappear. ▪Follow me on Vidme: https://vid.me/NominalGiant ▪Follow me on Twitter: https://twitter.com/NominalGiant ▪Join my Discord server: https://discord.gg/0eAATLB2m6IhVScJ ▪Support me on Gamewisp @ https://gamewisp.com/nominalgiant ... https://www.youtube.com/watch?v=6TdkU7k0gEQ