Brain Test 4 Level 513: Find the precious gem on this planet.
Brain Test 4 Level 513
Screenshots

Quick Answer
Use the pickaxe to break all the green rocks, then drag the alien eye (the gem) to the astronaut.
Skills Tested
Step-by-Step Solution
- 1) Grab the pickaxe.
- 2) Use it to break every green rock on the planet.
- 3) Remove the eye from the alien.
- 4) Drag the gem eye over to the astronaut.
Hint
Reveal a hint
Break the green rocks and hand the alien eye over to the astronaut.
Why It Works
Nothing on the planet looks like a normal gem, so the answer is that the alien own eye is the treasure. Destroying the green rocks clears the path, and moving the eye to the astronaut completes the trade. This is a clever case of misdirection about where the gem is.
Frequently asked questions
How do I find the gem in Brain Test 4 Level 513?
Break the green rocks with the pickaxe and drag the alien eye over to the astronaut as the gem.
What is the answer to Brain Test 4 Level 513?
Smash the green rocks, take the alien eye, and deliver it to the astronaut who is waiting.
What is the trick in Brain Test 4 Level 513?
The precious gem is actually the alien eye, so your target is the alien rather than a rock.
Why do I need to break the rocks in Brain Test 4 Level 513?
Destroying the green rocks clears the scene so you can reach the alien and take its eye.
Is there a video walkthrough for Brain Test 4 Level 513?
Yes, the video shows cracking the rocks and moving the eye to the astronaut.
How do I avoid getting stuck in Brain Test 4 Level 513?
Go after the alien eye itself after breaking the rocks; the gem is not hidden among the stones.