Aperture Tag: The Paint Gun Testing Initiative

Aperture Tag: The Paint Gun Testing Initiative is a Portal 2 modification featuring gameplay focussing around the use and manipulation of the Gels featured in Portal 2.

Mechanics

 * Paint Gun
 * Allows the player to coat a surface in either the Repulsion Gel or the Propulsion Gel, and allows the player to pick up objects in a similar fashion to the Portal gun.