Brain Test 4 answer

Brain Test 4 Level 121

Puzzle prompt

Help Astrodog to launch his rocket ship

Direct answer

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.

Puzzle screenshot
Brain Test 4 Level 121 solution 1
walkthrough

Follow the screen sequence

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

Puzzle screenshot01
Brain Test 4 Level 121 solution 1

Video walkthrough

version check

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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