He must open the door
Brain Test 5 Level 129 complete video walkthrough and solution.
Walkthrough Guide & Hints
Watch the video above to see the complete solution for Brain Test 5 Level 129. The video shows every step needed to pass this level, including all the tricky interactions and hidden mechanics.
Tip
If you get stuck, pause the video at the moment before the solution is revealed and try to figure it out yourself. Brain Test 5 rewards creative thinking — sometimes the answer is simpler (or stranger) than you think!
Step-by-Step Walkthrough
Light up the colored dots on the door cross in the right order to open it.
Use the agent's weapon to stop the evil yellow robot.
Enter the code 1-2-3 on the machine (the lightbulbs guide you) to turn it off.
About This Level
Level 129 — He must open the door — contains 3 puzzles to solve in order:
- He must open the door.
- Stop the evil robot.
- Turn off the doomsday device.
General Brain Test 5 Tips
- Try rotating your device — some puzzles require landscape mode
- Long-press objects to see if they can be dragged or interacted with
- Shake your device to trigger hidden mechanics
- Use multiple fingers simultaneously for certain interactions
- Pay attention to text clues — words themselves can be interactive
- If stuck, try the most absurd solution first — Brain Test loves surprises
Popular Levels
Tap the biggest juice
Video Walkthrough
Wake him up
Video Walkthrough
Stop the crying!
Video Walkthrough
They are freezing, help!
Video Walkthrough
Level 5
Video Walkthrough
Do the laundry
Video Walkthrough
Dig a hole to plant a tree
Video Walkthrough
Defuse the bomb!
Video Walkthrough
Still Stuck?
Watch the full video at the top of the page for the complete step-by-step solution.
Watch on YouTube