Unlock Random Puzzles
To make ALL the contraptions random automatically in Play mode complete ALL the puzzles in ALL 5 levels (Tutorial - Training, Easy, Medium - Normal, Advanced - Hard and Expert - Very Hard. Complete ALL 50 Vs. Puzzles to make the contraptions random in Vs. Mode (it does not matter who wins).
We have more cheats and tips for this game here, Return of the Incredible Machine Contraptions cheats
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