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Part 25
Portal: Revolution

Part 25

Detailed walkthrough for Part 25 of Portal: Revolution, covering levels 064 'Topsy Turvy' and 065 'The Legend of Smelly Belly', with step-by-step instructions and tips.

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Detailed walkthrough for Part 25 of Portal: Revolution, covering levels 064 'Topsy Turvy' and 065 'The Legend of Smelly Belly', with step-by-step instructions and tips.

This guide covers Part 25 of Portal: Revolution, focusing on levels 064 'Topsy Turvy' and 065 'The Legend of Smelly Belly'.

Walkthrough
  1. 1
    064. Topsy Turvy
    • Objective: Save 98 out of 100 Lemmings within 10:00.
  2. 2
    Ignore the Lemmings at the top. Focus on the five from the bottom hatch.
  3. 3
    Have two Lemmings build bridges to the right of the ceiling hole, then build simultaneously to the left, up through the hole.
  4. 4
    These two Lemmings will encounter a gravity reversal field. Dig through the thin ledge they reach.
  5. 5
    Build a bridge to the left of the switch on the second thin ledge so they land on the lowered steel ceiling.
  6. 6
    Have one Lemming build a bridge to the right at the corner to fall up further. The other will walk along the ceiling.
  7. 7
    The second Lemming will build a bridge and tip the switch, freezing the anti-gravity field.
  8. 8
    Have a builder Lemming build a second bridge to avoid falling. He will then dig at the base of his bridge to move along the ceiling.
  9. 9
    Speed up the first Lemming traveling along the ceiling. Make him a blocker near the bombable wall and blow him up to create a gap.
  10. 10
    The other Lemming will go through the gap, return to normal gravity, and build a bridge up and left for the rest.
  11. 11
    When the builder hits the small wall piece, make him a climber. Have him dig at the top of the bombed hole section to clear the wall. Repeat to fully clear.
  12. 12
    Have one of the remaining Lemmings build up and out of the pool with the crab to reach the exit.
  13. 13
    065. The Legend of Smelly Belly
    • Objective: Save 15 out of 15 Lemmings within 10:00.
  14. 14
    Make the first Lemming a climber.
  15. 15
    The climber will reach a chamber where a laser gate opens, releasing a weasel.
  16. 16
    Build a bridge as soon as you reach the second rivet from the small wall to the right of the laser gate.
  17. 17
    Dig down onto the steel. The climber/digger should hit steel and continue right to the exit, barely escaping the weasel.
  18. 18
    Return to the four Lemmings who made it through the gate.

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