Portal 2 Chapter 7 Enrichment Sphere 4

This is the forty-second level of the game and the first part of Chapter 7. The level takes place within Aperture Science Enrichment Sphere #4, and introduces Propulsion Gel as well as the way in which it can be used in conjunction with Repulsion Gel. Goo is present as the primary hazard.

Mechanics

 * Flinging
 * Propulsion Gel
 * Repulsion Gel
 * Weighted Storage Cube
 * Pedestal Button
 * Heavy Duty Super-Colliding Super Button
 * Panels

Hazards

 * Goo

Characters

 * Chell
 * Cave Johnson
 * Caroline
 * GLaDOS

Locations

 * Test Chambers 01 & 02
 * Sphere 04
 * Observation Room (at chamber 01)

Objective

 * Go through Old Aperture's Test Track.