Brain Test 5/X - Tricky Challenge Level 129

Complete solution for Brain Test 5/X - Tricky Challenge Level 129. Step-by-step guide and video walkthrough to solve this tricky puzzle.

He must open the door.

This Brain Test 5 level contains multiple scenes. Follow each step below in order.

1

Scene Step 1

Complete this action to move to the next scene.

Collect the red, yellow, and green balls by dropping them, luring the mouse with cheese, and breaking the bowling ball with a hammer. Place them in the door lock.
Brain Test 5 Level 129 Step 1 image 1
Step 1-1
Brain Test 5 Level 129 Step 1 image 2
Step 1-2
2

Scene Step 2

Complete this action to move to the next scene.

Pull the lever when the robot is directly on top of the trapdoor.
Brain Test 5 Level 129 Step 2 image 1
Step 2-1
Brain Test 5 Level 129 Step 2 image 2
Step 2-2
3

Scene Step 3

Complete this action to move to the next scene.

Change the middle number on the screen to 2 to match the tally marks on the wall (2-2-3).
Brain Test 5 Level 129 Step 3 image 1
Step 3-1
Brain Test 5 Level 129 Step 3 image 2
Step 3-2

Level Not Matching? Please Check:

1. Verify Level Number: Make sure your game shows Level 129 - the same as shown above.

2. Check Game Version: Brain Test has 5 different versions. Please select the correct version above that matches your game.

3. Still Not Matching? Game updates may shuffle level order. Try browsing all levels by cover image to find your exact puzzle.

If the level still doesn't match after checking above, please leave a comment below with a screenshot so we can update the guide!

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