Brain Test Level 123 Walkthrough & Answer
Level 123★★★★★
Guide by LevelWalks
Brain Test: Tricky Puzzles Level 123 sits about 41% through the game's 300-level run — late enough that the obvious patterns no longer work, early enough that the mechanics still favor lateral thinking.
## Question
**Brain Test Level 123:** Which direction is the bus heading?
## Answer
The bus is heading left. You can tell because you can't see the door — the door is on the other side, meaning the bus faces left.
## Step-by-Step Walkthrough
The bus is shown from the side with no visible door. In most countries, bus doors are on the right side. Since you can't see the door, the bus must be heading left (the door faces away from you).
Here is exactly how to solve Brain Test Level 123:
1. Read the question carefully — Brain Test loves wordplay and misdirection.
2. Look at every element on screen, including the question text itself.
3. Look for the bus door — it's not visible, meaning the bus faces left (door on the far side).
4. If you are stuck, remember that Brain Test rewards lateral thinking over logical answers.
## Why It's Tricky
Perspective-taking failure is the bias. Most people try to find arrows, exhaust smoke, or other direct indicators. The elegant solution requires you to mentally place yourself on the sidewalk and reason about which side the door would be on — a spatial reasoning challenge disguised as a visual puzzle.
## Why This Level Is Tricky
Difficulty 4 puzzles in Brain Test often involve meta-awareness — the solution might require interacting with your phone's hardware (volume buttons, tilt sensor) or manipulating the game's UI elements. The puzzle boundary extends beyond the screen content to include the device itself. Mid-game levels (51-150) start combining multiple trick types in one puzzle. You might need both wordplay and physical interaction to solve a single level. If one approach fails, switch to a completely different trick category.
## Common Mistakes
Players frequently make these errors on Level 123:
- Overthinking a simple puzzle — sometimes the answer is literally what the question says, with no trick at all.
- Not trying to drag or resize on-screen elements, including text, images, and answer options.
- Missing that Brain Test sometimes reuses a trick from an earlier level with a slight variation.
Tips
- Consider what information the puzzle DOESN'T give you, not just what it does.
- If the obvious answer seems too easy, it probably is — look for the twist.
- Remember: Brain Test Level 123 has a difficulty rating of 4/5 — it requires advanced lateral thinking.
FAQ
- How do I solve Brain Test Level 123?
- The bus is heading left. You can tell because you can't see the door — the door is on the other side, meaning the bus faces left. This is one of the trickiest puzzles in Brain Test because it requires you to think outside the box rather than using straightforward logic.
- Why is Brain Test Level 123 so hard?
- Brain Test Level 123 ("Which direction is the bus heading?") tricks players by using misdirection. Perspective-taking failure is the bias.
