Brain Test 4 answer

Brain Test 4 Level 28

Puzzle prompt

Doctor Worry needs to get blood samples

Direct answer

Put your finger on a spot of the screen and hold it for the fly to come and get your blood. After it gets red, drag the fly swatter to it. Finally, drag the empty can to the blood.

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 28 Brain Test 3Level 28 Brain Test 4Level 28 All StarLevel 28

Strategy guide

1.First, press and hold your finger on screen to attract the fly and let it collect blood until it turns red;
2.After the fly turns red, use the fly swatter to catch it, then drag the empty can to collect the blood;
3.Be patient during the blood collection phase - don't release your finger until the fly is fully red.

Common mistakes

1.Trying to use the fly swatter immediately without first attracting the fly with your finger;
2.Dragging the empty can directly to the screen instead of waiting for the fly to collect blood;
3.Releasing your finger too early before the fly turns red with blood.