Brain Test 4 Level 163: Astrodog must find a way to launch his rocket ship.
Brain Test 4 Level 163
Screenshots

Quick Answer
Drag the heavy black ball onto the hammock to stretch it, then place the rocket ship on the hammock to launch it.
Skills Tested
Step-by-Step Solution
- 1) Find the heavy black ball.
- 2) Drop the ball onto the hammock.
- 3) Let the hammock stretch down.
- 4) Put the rocket ship on it to launch.
Hint
Reveal a hint
Weigh the hammock down with the ball first.
Why It Works
Stretching the hammock is the key prep. The heavy ball bends it low, and placing the rocket on that pulled fabric releases the tension that sends the ship flying.
Frequently asked questions
How do I launch the rocket in Brain Test 4 Level 163?
Drag the heavy black ball onto the hammock to stretch it, then place the rocket ship on the hammock to launch it.
What is the answer to Brain Test 4 Level 163?
Put the heavy ball on the hammock to stretch it, then set the rocket ship on the hammock to fire it off.
What is the trick in Brain Test 4 Level 163?
The hammock is the launcher. Stretching it with the heavy ball stores energy that boosts the rocket up.
Why do I need the heavy ball in Brain Test 4 Level 163?
The ball stretches the hammock, and that tension is what hurls the rocket ship skyward afterward.
Is there a video walkthrough for Brain Test 4 Level 163?
Yes, the video shows the ball stretching the hammock and the rocket ship being launched from it.
How do I avoid getting stuck in Brain Test 4 Level 163?
Change the order: heavy ball first, rocket second. Placing the ship before the stretch does nothing.