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CouchCoopDesk

Portal 2 walkthrough

All 7 courses for two players, part by part: what Atlas and P-body each do, where people tend to fall. 212 steps in total.

Steps from 72 guide pages, 2 playthrough videos to watch · checked Oct 18, 2026. We did not play the game for this guide.

Who should play Atlas or P-body?
  1. Course 1 of 7

    Calibration Course

    Each bot starts alone and learns gestures and the ping tool before the two meet.

    • About 5 min
    • 1 part

    0 of 1 done

  2. Course 2 of 7

    Team Building

    Basic two-player portal tests that teach working together and pinging.

    • About 8–12 min
    • 6 parts

    0 of 6 done

  3. Course 3 of 7

    Mass and Velocity

    Momentum chambers: flings through portals and aerial faith plates.

    • About 15–20 min
    • 8 parts

    0 of 8 done

  4. Course 4 of 7

    Hard-Light Surfaces

    Hard light bridges become floors, walls and shields.

    • About 23 min
    • 8 parts

    0 of 8 done

  5. Course 5 of 7

    Excursion Funnels

    Excursion funnels carry you, cubes and gels, mixed with earlier tools.

    • About 28 min
    • 9 parts

    0 of 9 done

  6. Course 6 of 7

    Mobility Gels

    The last main course: old testing spheres with bouncing and speed gels on top of everything else.

    • About 30 min
    • 8 parts

    0 of 8 done

  7. Course 7 of 7

    Art Therapy

    The Peer Review DLC course: nine harder chambers mixing every element.

    • About 36 min
    • 9 parts

    0 of 9 done

Sources (74)

Text guides, which every step is counted from, and playthrough videos to watch (each part on a course page can jump the page's video to the moment it starts; videos are not counted as sources).