Here is our 3 star walkthrough video strategy for Amazing Alex level 4-29 The Treehouse, also called “Storm the Castle”. Here your objective is to crush the green piggy bank (likely using that really heavy bowling ball).
If you have a different strategy for completing this level feel free to leave a comment below.
put 2 planks leading down to the trap door and put a planks leading the 8-ball down and hit the star, then put a scale next to the doll and a bowling ball on the other side to hit the scale, flick the doll down to hit the lever, and the ball goes down the 2 planks and breaks the pig, good luck!