Brain Test 4 answer

Brain Test 4 Level 129

Puzzle prompt

Doctor Worry must find a way to stop that leak

Direct answer

1) There might be a valve somewhere. 2) Put away the barrels to see the valve.

Puzzle screenshot

walkthrough

Follow the screen sequence

Use the images as a compact replay of the solving path. The text below each frame explains what should change.

Video walkthrough

version check

Same number in other versions

Brain Test versions can reuse the same level number with a different puzzle. If the screenshot or question does not match your game, switch to the same number in another version or use the nearby level links.

Brain Test 1Level 129 Brain Test 3Level 129 Brain Test 4Level 129 All StarLevel 129

Strategy guide

1.Look for hidden mechanics - tap or drag barrels to reveal the valve underneath;
2.Clear all movable obstacles first to expose interactive elements in the scene;
3.Think about plumbing solutions - valves are common tools for stopping leaks.

Common mistakes

1.Trying to tap or drag the leak directly without looking for hidden elements;
2.Focusing only on the visible water flow and ignoring interactive background objects;
3.Attempting to use unrelated items from the inventory instead of clearing obstacles first.