Portal Test Chamber 15 (Bonus): Difference between revisions

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{{Spoiler|block=yes|
=== Portals ===
=== Portals ===
* It's possible to get the first energy pellet into the receptacle with just two portals, but it takes a bit of experimentation (using quick-save/reload).  The sweet spot for the exit portal is a bit to the left of where the lift is.   
* It's possible to get the first energy pellet into the receptacle with just two portals, but it takes a bit of experimentation (using quick-save/reload).  The sweet spot for the exit portal is a bit to the left of where the lift is.  Let the pellet bounce around until it hits the receptacle.   
* Don't bother with the second energy pellet puzzle.  Get past the slime channel by shooting portals through portals:
* Don't bother with the second energy pellet puzzle.  Get past the slime channel by shooting portals through portals:
** Go to the start of the channel and shoot one portal down to the far end and the other on the wall beside you.
** Go to the start of the channel and shoot one portal down to the far end and the other on the wall beside you.

Revision as of 11:16, 22 November 2012


Test Chamber 15 (Bonus)
testchmb_a_10.bsp

Chamber number 1.pngChamber number 5.png


Test Chamber Infobox previous.png
Test Chamber Infobox next.png
Test Chamber Infobox Portal Guy.png
Chamber progress 1.pngChamber progress 5.pngChamber progress slash.pngChamber progress 1.pngChamber progress 9.png


Portal Test Chamber 15.png
Chamber icon cube dispenser.pngChamber icon cube hazard.pngChamber icon pellet hazard on.pngChamber icon pellet catcher on.pngChamber icon water hazard on.png
Chamber icon fling enter on.pngChamber icon fling exit on.pngChamber icon turret hazard.pngChamber icon dirty water on.pngChamber icon cake.png


This is the third Bonus map of the game. It is unlocked when the original Test Chamber 15 has been completed.

Hazards

Strategy

Portals

  • It's possible to get the first energy pellet into the receptacle with just two portals, but it takes a bit of experimentation (using quick-save/reload). The sweet spot for the exit portal is a bit to the left of where the lift is. Let the pellet bounce around until it hits the receptacle.
  • Don't bother with the second energy pellet puzzle. Get past the slime channel by shooting portals through portals:
    • Go to the start of the channel and shoot one portal down to the far end and the other on the wall beside you.
    • Lean through until you can shoot again. There's a telltale buzzing noise and the launcher sight changes.
    • Shoot your [i]exit[i] portal down to the far end. Go for the wall that faces around the corner, not the one facing back to you. As soon as you shoot, step back. If you don't get out of the portal before your shot lands, you'll drop into the slime.
  • In the last chamber, put a portal at the foot of the victory lift, then step up onto one of the other platforms, put your second portal on the floor below and jump through. Move onto the victory lift platform as you fly up through the exit portal.

Steps

  • When using floor portals, close your exit portal as soon as you pop out of it, by firing the same colour somewhere else. This is easy if you have a portal-friendly ceiling above, but can be tricky if you have to cast around for a surface mid-flight.
  • Use floor-to-floor whenever possible - you can cover any distance without taking a single step. Place your exit portal first, then shoot the entry portal at your feet and throw the exit portal away as you come through.
  • Place a portal as far ahead as you can see and another right in front of the chamberlock. Jump through and cancel the exit portal.
  • Use floor-to-floor to get right against the emancipation grid.

Time

-To do-

Award requirements

Portals Steps Time
Bronze Silver Gold Bronze Silver Gold Bronze Silver Gold
23 Portals 21 Portals 14 Portals 75 Steps 65 Steps 55 Steps 105 Seconds 85 Seconds 54 Seconds

Video strategies

-To do-

See also