Brain Test 1 Level 331
Stop the monster
Drag the screw from the monster’s tail and put it in the blank spot of the cannon to repair it and let it shoot.

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
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.
Strategy guide
- 1.Look for interactive elements on the monster, especially its tail;
- 2.Identify missing parts on objects like the cannon's incomplete section;
- 3.Drag the screw from the monster's tail to the cannon's empty spot.
Common mistakes
- 1.Tapping the cannon repeatedly without noticing the missing screw;
- 2.Dragging the monster instead of the screw from its tail;
- 3.Trying to shoot the cannon before repairing it with the screw.
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