Brain Test 5 Level 129

Overview

Level 129 follows a suited sunglasses agent through a door-lock round and a robot-stopping round. The first shows a brown door fitted with a four-spoke color lock carrying red, gray, yellow, and blue dots around a segmented center wheel, with an agent standing beside a mallet, a green bowling ball on the floor, and a short shelf plank on the wall, under the prompt "He must open the door." The second shows the same agent holding a gun, a red-handled lever on a wall box above him, a gray trapdoor panel on the floor, and a green check on screen, under the prompt "Stop the evil robot." The first decodes the door's color lock, and the second uses the lever and trapdoor against the robot.

• Difficulty: Regular
• Estimated moves: 4

Step-by-Step Solution

1. In the door round, read "He must open the door." Study the four-spoke lock on the brown door and note the colored dots on each spoke: red at the top, gray on the left, yellow on the right, and blue at the bottom.
2. Compare those colors with the segmented center wheel, which splits into matching color wedges. Rotate the spokes or the center wheel so each colored dot lines up with its matching wedge.
3. Check the loose props around the agent. The green ball and mallet are secondary; the shelf plank on the wall may supply a missing color piece or cover an unused part of the lock, so use it only if the color sequence requires it.
4. Once the four colors match their positions, the door lock releases and the panel opens. Move through to the robot scene.
5. In the robot round, read "Stop the evil robot." Identify the agent with his gun, the red lever mounted on the wall box, and the gray trapdoor panel below.
6. Pull the red lever to trigger the floor mechanism. The lever opens or releases the trapdoor panel beneath where the robot will come through.
7. Guide or draw the robot toward the open panel so the mechanism stops it rather than letting the agent fight at close range.
8. When the green check appears, the robot has been stopped and the level reaches its completion celebration.

Strategy & Reasoning

The door lock works by color matching rather than brute force. The four spokes carry distinct colors, and the center wheel repeats those colors in wedges, so the solution aligns each dot with its matching segment. The mallet and bowling ball look like striking tools, but forcing the door would be the rejected shortcut; the lock opens when the color arrangement is correct.

In the robot round, the lever and floor panel mark the intended mechanism, much like a trapdoor setup. The gun gives the agent a fallback, but the scene provides a lever for releasing the panel, which means the robot is meant to be stopped by the floor mechanism rather than shot directly.

The two rounds keep the same agent and setting, but each uses a different control: the door round is a color-alignment puzzle, while the robot round is a lever-and-panel trigger. Mixing the props across rounds, such as swinging the mallet at the lock or firing at the trapdoor, ignores the control each scene supplies.

Tips & Common Mistakes

• Do not smash the door with the mallet; the color spokes and center wheel have to be matched to release the lock.
• Do not pull the robot round lever before understanding the panel; the trapdoor has to be open before the robot can be directed onto it.
• Do not assume the bowling ball belongs to the door lock; check whether a prop matches the round's mechanism before dragging it into play.