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25/tick or instant kill
The Goo, also known as Contaminated Water, Moat, Toxic Water or simply Acid, is a common environmental hazard in both Portal and Portal 2. It is often found in Test Chambers, where it usually functions as a testing element, as well as in various maintenance areas. It also fills the very bottom of Test Shaft 09.
Goo is usually present within Test Chambers to add a hazardous element to the equation. Any contact with the Goo will result in continuous damage that would eventually kill a Test Subject within a few seconds. In Portal, the death appears as in the Half-Life series (i.e. the view of the bottom of the Goo pit, with the ability to look around); in Portal 2, the screen simply goes to green.
In Portal, the Goo appears as a mixture of red, green, and brown-colored liquid with a swirled appearance, often with smoke swirling around its presence. In Portal 2, the Goo appears to be mainly brown, though still with a swirled appearance.
|Empty Gesture (25G)|
|Drop your co-op partner in Goo while they are gesturing by removing the bridge under them.|
Behind the scenes
The Goo can be seen as the Portal series equivalent of the radioactive / toxic waste from the Half-Life series, which serves a similar purpose.
Ditto, in early Test Chamber 08.
In Test Chamber 11.
In a typical maintenance area of the Aperture Laboratories.
Goo in Test Chamber 04.
In Test Chamber 05.
In Test Chamber 06.
In Test Chamber 12.
In Test Chamber 21.
Goo in Enrichment Sphere 05, functioning as an intended hazard.
Goo icon in Perpetual Testing Initiative.
List of appearances
- Portal (First appearance)
- Portal: First Slice
- Portal: Still Alive (Non-canonical appearance)
- Portal 2
- The Final Hours of Portal 2
- Peer Review
- Perpetual Testing Initiative
- Lego Dimensions (Non-canonical appearance)