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

Level 2 - Jumping Jack

Level 3 - Pinball

Level 4 - Target Practice

Level 5 - Towering Inferno

Level 6 - The Swing

Level 7 - Up There

Level 8 - Dunk Tank

Level 9 - The 4th Floor

Level 10 - Pointy Things

Level 11 - Piggy Day

Level 12 - Angry Doll

Level 13 - Domino Effect

Level 14 - Mission Improbable

Level 15 - Danger on the Road

Level 16 - Bumper Car

Level 17 - The Hostage

Level 18 - Crash

Level 19 - Dangerous Crossing

Level 20 - Balloon Catching

Level 21 - First Flight

Level 22 - Stealth Ops

Level 23 - Catch That Plane

Level 24 - Air Show

Level 25 - Cargo Delivery

Level 26 - Space Cadet

Level 27 - Rocket Science

Level 28 - Magic Trick

Level 29 - Save the Balloon

Level 30 - Down With the Dolls

Level 31 - Truck Trap

Level 32 - Ballast Overboard