🧩 Level Information

• Level Number: 21
• Objective: Bring rain clouds close to each other to generate lightning
• Difficulty: Easy

🎯 Objective

Drag the rain clouds on the screen to move them closer and overlap them to create lightning.

📝 Solution Steps

1. Tap and hold one of the rain clouds on the screen to drag it.
2. Move it towards the other rain cloud.
3. Bring the two rain clouds close enough so that they almost overlap.
4. Once the clouds are sufficiently close, lightning will automatically occur, and you will clear the stage.

💡 Hints

• This might be a puzzle that requires dragging, not just tapping.
• Try moving things (clouds) on the screen with your finger if they seem movable.
• Consider changing the positions of both rain clouds, not just one.
• Something happens when you bring two rain clouds close together and overlap them.

🧠 Analysis & Key Points

This stage is an intuitive puzzle where the problem description itself is almost the answer. Simply follow the instruction "bring rain clouds close to create lightning." Many players might initially try to produce lightning by directly interacting with things on the screen, like tapping or clicking rapidly. In Brain Test, a basic rule is to "drag movable objects," and this stage serves to remind the player of this rule. Visually clear feedback is given when dragging the clouds together and overlapping them to produce lightning. No special order or timing is required; simply overlapping clouds solves it.

🔍 Common Mistakes

• Mistakenly thinking there is a lightning button or hidden switch and tapping around everywhere.
• Nothing happens when tapping clouds, so searching for other objects instead.
• Bringing clouds slightly closer but giving up without fully overlapping them.
• Trying to create lightning by shaking the phone or using device features (volume button, power button, etc.).

🎉 Advice After Clearing

When two rain clouds overlap, a powerful lightning strike occurs, and the stage is cleared along with an effect. Players can reaffirm the Brain Test's basic rule of "dragging and combining movable objects."

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