Repulsion Gel

A bright blue coating that turns solid surfaces into high-velocity trampolines.

Repulsion Gel is a bright blue, viscous substance originally introduced in Portal 2 (2011) and later featured in the Aperture Science test chambers of Portal: Revolution. The gel provides a significant jump boost when a player lands on a coated surface, allowing them to reach elevated areas or traverse large gaps that would otherwise be impassable. In Portal: Revolution, this mechanic is featured alongside other classic tools like cubes and Pneumatic Diversity Vents. While it shares its properties with the original Portal 2 implementation, its inclusion in this 2024 modification highlights the mod's commitment to expanding upon the original game's physics engine, with the gel's behavior directly inherited from Portal 2's existing Source engine features.

Quick Facts

Color: Blue
Function: Jump boost; Bouncing pad

Reader's Guide

In Portal: Revolution, the Repulsion Gel is utilized by applying it to surfaces within the test chambers to create bouncing pads. The gel is distinguished by its bright blue color and provides a jump boost when the player lands on it. Unlike the Propulsion Gel (colored orange), which increases speed, Repulsion Gel converts impact into upward momentum. The game introduces new mechanics alongside these gels, such as paired cubes that transport laser beams and Pneumatic Diversity Vents that suck up items. In the first half of the campaign, many puzzles restrict the player to controlling only one portal while the other remains fixed, requiring precise use of gel bounces to navigate. As the difficulty increases progressively across the eight chapters, mastering the timing of these jumps becomes crucial for completing the game in approximately 8 hours.

Did You Know?

Portal: Revolution was released on January 6, 2024, after being delayed due to approval difficulties with Valve.
The game uses a custom version of the Source engine called Strata Source to introduce features that were previously impossible in Portal 2, though the gel's physics are inherited from Portal 2's existing implementation.