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Part 29
Portal: Revolution

Part 29

Detailed walkthrough for Part 29 of Portal: Revolution, covering levels 072 'Odd Jobs', 073 'Reduce and Simmer', and 074 'Waste not...want not.part 2' with step-by-step instructions.

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Detailed walkthrough for Part 29 of Portal: Revolution, covering levels 072 'Odd Jobs', 073 'Reduce and Simmer', and 074 'Waste not...want not.part 2' with step-by-step instructions.

Walkthrough
  1. 1
    Level 0: Lemmings
    • Save 48 Lemmings in 3:20.
  2. 2
    Set release rate to 87-90.
  3. 3
    Make the first Lemming a digger upon reaching the ground.
  4. 4
    Quickly make the next Lemming a blocker to stop others.
  5. 5
    Have a subsequent Lemming build bridges to the left.
  6. 6
    Make the builder a blocker after creating one bridge.
  7. 7
    Build out of the small hole to the left to free the rest.
  8. 8
    Wait for Lemmings to turn around at the blocker.
  9. 9
    Build two bridges to reach the balloon.
  10. 10
    Nuke the two blockers once 48 Lemmings are saved.
  11. 11
    Level 072: Odd Jobs
    • Save 100 Lemmings in 6:00.
  12. 12
    Make the first Water Lemming a climber/floater to activate a lever, filling a water pool.
  13. 13
    Make the next Lemming dig through the left side of the wall.
  14. 14
    Have the climber/floater mine until hitting steel.
  15. 15
    When the digger reaches the top of the V-shaped staircase, create a hole for Lemmings to be trapped.
  16. 16
    Ensure Lemmings are trapped in the corridor with the V-shaped stairway.
  17. 17
    Make another climber/floater go up the wall to the right.
  18. 18
    This climber/floater mines to steel and climbs a staircase to a switch that drains another pool.
  19. 19
    A second climber/floater activates a switch inside this pool to open the path to the balloon.
  20. 20
    Once the path is open, have one Lemming bash out of the V-shaped hallway to the right.
  21. 21
    Level 073: Reduce and Simmer
    • Save 20 Lemmings in 10:00.
  22. 22
    Place a blocker under the last thin ledge of the staircase to avoid a weasel.
  23. 23
    Allow other Lemmings to activate a switch that opens a floor, drowning the weasel.
  24. 24
    Place another blocker to the left.
  25. 25
    Blow up the right blocker and place a new one further right, under the plateau with the balloon.
  26. 26
    Start building bridges to the right from the level's entrance.
  27. 27
    Build a bridge up to a small thin ledge.
  28. 28
    Turn the builder into a blocker once they reach the ledge.
  29. 29
    Build bridges to the exit from the blocker's position.
  30. 30
    Level 074: Waste not...want not.part 2
    • Save 10 Lemmings in 10:00.
  31. 31
    Make the first Lemming a climber and a floater.
  32. 32
    Have the climber/floater climb over the metal wall and mine at the third rivet from the end.
  33. 33
    Bash to the left near the top of the steps to divert the climber/floater so other Lemmings can bypass him.
  34. 34
    Ensure the bash is high enough for other Lemmings to walk over the mined wall section.
  35. 35
    The basher/climber/floater, now last in line, builds up to the steel floor between the two doors.
  36. 36
    The Lemmings touch an anti-gravity pad and walk on the ceiling.
  37. 37
    The last Lemming heads left to a laser device after hitting the steel floor.
  38. 38
    The other Lemmings eventually return to the ground and head to the balloon.

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