Just Cause 2 is a 2010 open world action-adventure video game developed by Avalanche Studios, published by Eidos Interactive and distributed by Square Enix for Microsoft Windows, PlayStation 3 and Xbox 360. The sequel to 2006's Just Cause, it was powered by Avalanche Studios' Avalanche Engine. It features Rico Rodriguez, a major operative of the fictional Agency who arrives at Panau (a fictional dystopian island nation in Maritime Southeast Asia) to overthrow dictator Pandak "Baby" Panay and confront former mentor Tom Sheldon. The gameplay involves Rico fighting hostile militants with guns and a grappling hook, enabling players to tether objects to each other and slingshot into the air with a parachute. Just Cause 2 introduces the Chaos System, in which players must complete missions and destroy government property on Panau for Chaos points. These points are essential for story progression.