Originally developed in Germany, it offers building Rube Goldberg-style contraptions -combining pulleys, springs, balls, and other mechanical pieces- to achieve a specific goal in each level, with the particular satisfaction of seeing the chain reaction work from start to finish.
It's a faithful adaptation of the PC series' concept to DS's touchscreen, where dragging and adjusting pieces with the stylus is especially comfortable; it remains a good option for those who enjoy physics and improvised-engineering puzzles.

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