Brain Test 4 Level 121
Help Astrodog to launch his rocket ship
1) Astrodog needs a 5 seconds countdown. 2) Tap on the numbers to count down the numbers. 3) Tap in this order: 5, 4, 3, 2, 1. 4) The number 2 is hidden behind the stall.

Follow the screen sequence
Use the images as a compact replay of the solving path. The text below each frame explains what should change.

Video walkthrough
Same number in other versions
Brain Test versions can reuse the same level number with a different puzzle. If the screenshot or question does not match your game, switch to the same number in another version or use the nearby level links.
Strategy guide
- 1.Look carefully for the hidden number 2 behind the stall before starting your countdown;
- 2.Tap numbers in exact descending order: 5, then 4, then 3, then 2, then 1;
- 3.Wait for each number to disappear completely before tapping the next number in sequence.
Common mistakes
- 1.Tapping numbers randomly without following the 5-4-3-2-1 sequence order;
- 2.Missing the hidden number 2 behind the stall and trying to tap visible numbers only;
- 3.Starting countdown from wrong numbers or tapping numbers out of sequence.
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