Level walkthrough
Brain Test Level 142 Walkthrough: Create a Green Ball

Brain Test Level 142 Walkthrough: Create a Green Ball
Complete Walkthrough ・ Step-by-Step Guide ・ Common Mistakes
🧩 Level Information
- Level Number: 142
- Task Instruction: Press and hold a blue or yellow ball, and combine it with a ball of the opposite color falling from above to make it green
- Difficulty: medium
🎯 Objective
Skillfully combine the blue or yellow balls within the screen to create a green ball.
📝 Solution Steps
- Select one 'blue' or 'yellow' ball at the bottom or side of the screen. It doesn't matter which one.
- 'Press and hold' the chosen ball, instead of merely 'tapping', and keep holding it in place. Do not release your finger.
- While holding, wait for a ball of the opposite color (blue or yellow) to fall from above.
- Time it so that the falling ball overlaps with the ball you're holding down with your finger.
- If needed, slightly slide the held ball to adjust its position and ensure it overlaps properly with the falling ball.
- When the two balls (blue and yellow) overlap, their colors will mix to form a 'green' color, and the level is cleared.
- Once you confirm the color has turned green, release your finger and wait for the stage clear presentation.
💡 Hints
- Not just tapping but 'pressing and holding' the ball in place is key.
- Remember what color you get when you combine blue and yellow.
- Hold a ball in place at the bottom of the screen and try overlapping it with the falling ball of the opposite color.
- Nothing happens when you combine balls of the same color (blue+blue, yellow+yellow). You need to create a blue+yellow combination.
🧠 Analysis and Key Points
This stage is a puzzle that simultaneously requires understanding two game mechanics: 'holding to fix position' and 'color combination'. Players must first realize that pressing and holding is necessary, instead of a normal tap. Holding will keep the ball in place, serving as a 'receptacle' for the falling ball. Based on the fundamentals of color theory, the game assumes the knowledge that blue mixed with yellow makes green, allowing logical deduction of which colors to combine. A slight action element requires proper timing and positioning, meaning it's a skillful task beyond mere insight.
🔍 Common Mistakes
- Simply 'tapping' the ball and releasing it, failing to catch the falling ball.
- Mistakenly thinking no reaction happens by hitting the same colors together (blue+blue, yellow+yellow).
- Not moving the held ball at all and failing to align it with the falling position.
- Accidentally releasing while holding, causing the fixed ball to move and fail to merge correctly.
- Failing to think of mixing colors and continuing to try other gimmicks (swipe, pinch, etc.).
🎉 Tips After Clearing
Successfully stacking blue and yellow to create green clears the stage. Familiarity with color combinations and press-hold actions will be beneficial in future levels. Let's proceed to the next level.