World of Goo

Rather than a series of puzzles, the game presents the balls of goo as living creatures in a universe they set to explore.

They need to find out about the power source of the world they live in and the true meaning behind the Goo Corporation.

In most of the levels, the constructions need to reach a pipe that sucks the goo balls out of the level.

To succeed, players need to bring over a certain amount of balls or do it within a limited amount of time.

There are also OCDs (Obsessive Completion Distinction) where players can aim for secondary, much more difficult goals.

Each level brings entirely new challenges, based on gameplay, environment elements, art style and types of goo balls.

Regular balls can be dragged and dropped with the mouse or wii remote to form cohesive connections, but only for a short distance.

Because of the physics and the wobbly matter, a solid basis is required.

Balls can be picked up and moved around to adapt the constructions.

While buildings sometimes timebugs will appear.

When clicked, they allow the player to go back in time for one move.

The types of goo differ greatly in abilities, connections and response to physics.

Some of the goo balls introduced gradually are ivy goo (attach and detach at will), albino goo (four connections), balloon goo (fly upwards), water goo, pokey goo, fuse goo, bone goo, and much more.

In some levels, sleeping balls can be woken up to join the construction.

Constructions not only bend, but can also be broken when gravity gets the upper hand.

In later chapters, players acquire a whistle that can be used to lure all loose goo balls in a certain direction.

More of the world is revealed through cut-scenes and sequences during gameplay,

World of Goo for Nintendo Wii is currently worth €102.74 loose, €15.31 complete in box, and €30.62 factory sealed. Prices are based on real sales and update regularly on Gamevaro.

World of Goo has a steady sales history on the tracked marketplaces, meaning it trades hands regularly and isn't considered particularly rare.

Loose means cartridge or disc only, CIB (complete in box) includes the original box and manual, and sealed means factory-sealed and never opened. For World of Goo, loose is €102.74 and CIB is €15.31 — CIB commands a premium because original boxes and manuals are fragile and often don't survive.