Brain Test All-Star Level 521: The blue car must go through the traffic.
Brain Test All-Star Level 521
Screenshots

Quick Answer
Drag the word 'traffic' from the question onto the blue car to give it a siren, clearing the road.
Skills Tested
Step-by-Step Solution
- 1) Find the word 'traffic' in the question at the top.
- 2) Drag the word down onto the blue car.
- 3) Watch the car gain a siren and the road clear.
Hint
Reveal a hint
The word in the question is the key. Drop the word onto the car to turn it into a special vehicle.
Why It Works
This level wants you to think with words, not wheels. Pulling the word traffic onto the blue car gives it a police or ambulance siren, and the surrounding cars clear the road so it can pass.
Frequently asked questions
How do I pass the blue car in Brain Test All-Star Level 521?
Drag the word 'traffic' from the question onto the blue car to give it a siren.
What is the answer to Brain Test All-Star Level 521?
Drop the word 'traffic' onto the blue car so it becomes an emergency vehicle and the road clears.
What is the trick in Brain Test All-Star Level 521?
The solution uses the question text itself, turning the word into a siren for the car.
Why do I need to drag the word in Brain Test All-Star Level 521?
Giving the car a siren makes the other vehicles move out of the way.
Is there a video walkthrough for Brain Test All-Star Level 521?
Yes. The embedded video shows dragging the word onto the blue car.
How do I avoid getting stuck in Brain Test All-Star Level 521?
Do not try to move the other cars; interact with the word in the question instead.