Return of the Incredible Machine: Contraptions Over 250 unique and challenging "Contraptions" to solve, most with multiple solutions! Go head-to-head with a friend in the two-player mode, and see who can solve the "Contraption" first. 50 head-to-head puzzles. Over 100 different parts to mix and match. Certain Programmable Parts allow for truly custom puzzles. Create and save your own puzzles to share with friends. Change the gravity and air pressure for each "Contraption" to simulate different worlds, or outer space Accurate physics models create realistic interactions between parts. Change the gravity and air pressure for each "Contraption" to simulate different worlds, or outer space.