Meet Amazing Alex - a creative kid who likes to make barmy contraptions out of toys and other things he finds lying about the house. In this physics-puzzler, it's your job to slot in the missing pieces to make his chain reactions come to life.

The third chapter is Alex's Bedroom. These 32 stages add a number of new toys. There's the remote control truck, the (familiar) green piggy bank, the floaty paper aeroplane, and the magic magnet. There's also a ragdoll, but we're going to assume that belong to Alex's sister.

If you get stuck, load up the level fresh and then recreate the setups shown in our screenshot walkthroughs. If you follow our advice to the letter, you'll beat the stage and unlock three stars on every level.

Level 1 - Bumper Magic
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Level 2 - Jumping Jack
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Level 3 - Pinball
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Level 4 - Target Practice
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Level 5 - Towering Inferno
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Level 6 - The Swing
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Level 7 - Up There
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Level 8 - Dunk Tank
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Level 9 - The 4th Floor
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Level 10 - Pointy Things
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Level 11 - Piggy Day
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Level 12 - Angry Doll
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Level 13 - Domino Effect
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Level 14 - Mission Improbable
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Level 15 - Danger on the Road
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Level 16 - Bumper Car
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Level 17 - The Hostage
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Level 18 - Crash
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Level 19 - Dangerous Crossing
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Level 20 - Balloon Catching
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Level 21 - First Flight
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Level 22 - Stealth Ops
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Level 23 - Catch That Plane
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Level 24 - Air Show
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Level 25 - Cargo Delivery
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Level 26 - Space Cadet
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Level 27 - Rocket Science
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Level 28 - Magic Trick
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Level 29 - Save the Balloon
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Level 30 - Down With the Dolls
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Level 31 - Truck Trap
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Level 32 - Ballast Overboard
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