Brain Test Level 668: I want to see eight balls.
Brain Test Level 668
Screenshots

Quick Answer
Tap the center yellow ball to spawn more, then drag and place exactly eight yellow balls onto the figure-8 outline.
Skills Tested
Step-by-Step Solution
- 1) Look at the figure-eight outline on the screen.
- 2) Tap the center yellow ball to spawn more.
- 3) Drag the balls onto the outline.
- 4) Place exactly eight yellow balls to finish.
Hint
Reveal a hint
Spawn extra balls and fill the outline with eight.
Why It Works
The visible balls are not enough to show eight. Tapping the center ball spawns more, and placing exactly eight yellow balls along the figure-eight shape satisfies the request.
Frequently asked questions
How do I show eight balls in Brain Test level 668?
Tap the center yellow ball to spawn more, then place exactly eight yellow balls on the figure-eight outline.
What is the answer to Brain Test level 668?
Spawn extra balls and set exactly eight of them onto the outline.
Why tap the center ball in Brain Test level 668?
Tapping the center ball creates the extra balls needed to reach eight.
What is the trick in Brain Test level 668?
The trick is spawning and carefully placing exactly eight balls on the outline.
How many balls do I place in Brain Test level 668?
You must place exactly eight yellow balls on the figure-eight outline.
Is there a video walkthrough for Brain Test level 668?
Yes, the embedded video shows the balls being spawned and placed.