Engineer your own bright, animated world by using your fingertips to erect wobbly bridges and towers out of anthropomorphized goo balls. Careful, though — gravity can bring it all crashing down. The game demands that you carefully consider the structural strategy underlying each fanciful edifice.
WIRED Good game physics. Requires both thoughtful planning and nimble-fingered control.
TIRED Crashy. Not nearly as satisfying on the iPhone's smaller screen.

