World of Goo 2 builds its puzzle-adventure around curious Goo creatures and a world that shifts across a story spanning hundreds of thousands of years. A powerful company presents itself as an environmentally friendly Goo-processing non-profit, while the game asks what it really wants. That mystery gives the journey a larger frame than simply reaching the exit of each area.
The central challenge is to guide as many Goo Balls as possible into an exit pipe, using them to build bridges and towers or to terraform terrain and fuel flying machines. Liquid adds a distinctive physical element: players route its flow like a river, turn it into Goo Balls, and use it to put out fires. New varieties, including Jelly Goo, Liquid Launchers, and Explosive Goo, bring different properties to the puzzles, while the world itself is described as beautiful but dangerous.
The game is structured as a single-player experience, with five story chapters and more than sixty levels featuring additional challenges. A new soundtrack and unusual Goo species round out its distinctive, playful design.
