Portal: Revolution Part 19 Walkthrough

Q: How to save 48 Lemmings in Part 19?

This section covers two challenging levels: 'Bridges' which introduces Acid Lemmings and requires precise use of blockers and bridges, and 'Walk the plank or join the crew?' which demands meticulous timing and path manipulation to navigate hazards like lava and lasers.

Q: How to save 75 Lemmings in Walk the plank or join the crew?

This section covers two challenging levels: 'Bridges' which introduces Acid Lemmings and requires precise use of blockers and bridges, and 'Walk the plank or join the crew?' which demands meticulous timing and path manipulation to navigate hazards like lava and lasers.

Q: What is the time limit for Bridges in Portal: Revolution?

This section covers two challenging levels: 'Bridges' which introduces Acid Lemmings and requires precise use of blockers and bridges, and 'Walk the plank or join the crew?' which demands meticulous timing and path manipulation to navigate hazards like lava and lasers.

Q: How to deal with Acid Lemmings in Portal: Revolution?

This section covers two challenging levels: 'Bridges' which introduces Acid Lemmings and requires precise use of blockers and bridges, and 'Walk the plank or join the crew?' which demands meticulous timing and path manipulation to navigate hazards like lava and lasers.

Q: What is the goal of Walk the plank or join the crew?

This section covers two challenging levels: 'Bridges' which introduces Acid Lemmings and requires precise use of blockers and bridges, and 'Walk the plank or join the crew?' which demands meticulous timing and path manipulation to navigate hazards like lava and lasers.

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Walkthrough

1
051. Bridges
- Save 48 out of 53 Lemmings in 3:30.
2
This level introduces Acid Lemmings, who can walk on acid but not lava.
3
Place a blocker at the top to stop blue Lemmings.
4
Turn one Acid Lemming into a climber.
5
Have the climber mine into the steel wall and bash through the arrowed wall.
6
This action drains an acid pool, revealing a switch.
7
A green Lemming will activate the switch, creating a bridge over lava.
8
Have the climber build a bridge for blue Lemmings.
9
Bomb the blue blocker and release the regular Lemmings.
10
Place another blocker at the top of a small staircase to catch any escapees.
11
Use a basher to guide any Lemmings through the stairs.
12
Nuke any Lemmings left behind once the main group is safe.
13
052. Walk the plank or join the crew?
- Save 75 out of 100 Lemmings in 15:00.
14
This level requires precision and timing.
15
Turn the camera to find the correct hatch at the top.
16
Make the first Lemming a blocker, then the second.
17
Herd the remaining Lemmings to the left of the left blocker.
18
Return to the second door.
19
Make the second Lemming in line a blocker.
20
Have the next Lemming build up to the ledge with two bridges, bashing to cut off the second.
21
Build a bridge into the steel wall, then one to the left, bashing to cut it off.
22
Build two bridges over the laser detector to prevent Lemmings and a weasel from touching it.
23
This closes a large wall, allowing Lemmings on the bottom half to escape.
24
Dig straight down after the bridges.
25
Let the Lemming run into the blocker at the bottom to turn around.
26
Mine a hole facing right just before the zigzag bridge to kill the Lemming (this path is later used by a weasel).
27
Focus on Lemmings squeezed between the blocker and the arrowed wall.
28
Make one a climber/floater to scale the wall towards an acid pool.
29
Build two bridges over the pool, cutting off the last one early.
30
Bash beneath the portal (on the first step of the stairs leading to it) to make it appear to float.
31
Allow space to build to the left side of the portal, then turn the basher into a blocker.
32
Send another Lemming over the wall.
33
Wait for it to hit the blocker, then build two bridges from the left side of the lava pool to connect.
34
Let this second climber/floater bash through the arrowed wall to the right.
35
Have these Lemmings build a bridge to the left side of the portal.
36
They will exit the other portal at the top of the level.
37
The most difficult part is getting the single Lemming at the top past the long wall while it's open, avoiding the weasel. This requires good reflexes.

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