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PSI Challenge Markers
Psychonauts 2

PSI Challenge Markers

Find all PSI Challenge Markers in Psychonauts 2 across Motherlobe, Quarry, Questionable Area, and Green Needle Gulch. Includes locations and requirements.

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Find all PSI Challenge Markers in Psychonauts 2 across Motherlobe, Quarry, Questionable Area, and Green Needle Gulch. Includes locations and requirements.

Walkthrough
  1. 1
    Motherlobe
    • Noodle Bowl, on top of a lamp fixture.
  2. 2
    Sasha's lab, side chamber.
  3. 3
    Classroom, under entrance stairs.
  4. 4
    Mail room, on top level of conveyor belts.
  5. 5
    Truman's private office.
  6. 6
    Atrium (requires Thought Tuner): one of the two mental connection paths you can uncover leads to the floating platform nearest to the Agents ramp.
  7. 7
    Bowling Alley, on top of rotating ring above counter.
  8. 8
    (Requires Projection) Mail room: send your archetype through the mail slot in the door near the fan.
  9. 9
    Quarry
    • (Requires Thought Tuner) Outside Otto's lab, find a mental connection path leading to a ledge above the lab entrance.
  10. 10
    (Requires Thought Tuner) Mental connection path starting near dock between goat island and treehouse.
  11. 11
    Mux Turbine area: From entrance to area, take path to left, jump around a machinery box blocking the path, grind rail; turn off electricity by flipping blue switch then orange then purple/pink; jump on top of electrical box and onto beam above; drop into fenced-in section nearby.
  12. 12
    Psychoisolation roof: From Mux Turbine entrance, jump to upper platform, grind pipe, use trapeze, jump off and float in draft.
  13. 13
    (Requires Thought Tuner) Along path from Motherlobe to Lili's Garden, follow stray thoughts path.
  14. 14
    Questionable Area
    • On top of spinning Lumberstack sign: from roof, grind along lumberjack statue's axe handle, shoot a target on statue's back, grind axe handle again and make a tricky landing on a vent pipe.
  15. 15
    Sassclops cave: behind "Sassclops vs. Nessie" cloth banner, climb platforms and tightrope.
  16. 16
    Inside Aquato Dome, climb to top.
  17. 17
    Climb vines on tree in middle of entrance area, use springy plant on platform at top to reach a platform above the Aquato Dome; climb tightropes to top.
  18. 18
    (Requires Thought Tuner) Follow stray thoughts path from Rebel Roundabout area.
  19. 19
    At top of funicular ride, on gift shop's roof.
  20. 20
    Reward for completing the Find Queepie side quest. In case for some reason you finished the side quest but didn't collect the reward: in campground area, light campfire and levitate in updraft to wooden walkway; use a springy plant and a trampoline, and jump onto handle to descend to a lower platform.
  21. 21
    Green Needle Gulch
    • Follow stray thoughts path starting along path from Nona's River House to Heptadome.
  22. 22
    Inside psychoisolation chamber to left of exploding bulb path: flip three switches around the perimeter to open it.
  23. 23
    At end of stray thoughts path from Ford's Office roof: from Helmut's amphitheater, climb the pole near the exit and jump across the path, then climb the vines starting inside.
  24. 24
    (Requires Projection) Find the outhouse to the left near the start of the honey path, and send your archetype through the mail slot.
Tips
  • Some PSI Challenge Markers require the use of the Thought Tuner to reveal mental connection paths or stray thoughts.
  • The Projection ability is necessary for accessing certain markers, particularly in the Mail room areas.
  • Careful platforming and use of grind rails, trapezes, and springy plants are often needed to reach markers.
  • The Find Queepie side quest reward in the campground area can be tricky to re-access if not collected immediately.

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