Level walkthrough
Brain Test Level 57 Walkthrough: Change × to +

Brain Test Level 57 Walkthrough: Change × to +
Complete Walkthrough, Step-by-step Guide, Common Mistakes
🧩 Level Information
- Level Number:57
- Problem Statement:Align the cannon with × and shoot a cannonball to make it +
- Difficulty:Normal
🎯 Objective
Properly align the cannon with the marked "×" on the screen and fire a cannonball to change its shape to "+".
📝 Step-by-Step Solution
- Focus on the cannon located at the bottom (or edge) of the screen. Rapidly pressing the aiming button will not change the shape.
- Press and hold the barrel part of the cannon, and confirm that you can drag and move it.
- Drag the cannon so it is directly below (or beside) the "×" mark, aligning the muzzle to aim straight at the center of ×.
- Fine-tune the angle and position to make sure the cannonball hits the center of ×. Prioritize aligning the cannon's orientation and position over the aiming mark.
- Once the position is set, tap the fire button (or the cannon) to shoot the cannonball.
- When the cannonball hits the center of ×, part of the diagonal line breaks away, leaving a "+" shape with intersecting lines. Stage cleared.
💡 Hints
- Just tapping to fire the cannonball will never change the × to +.
- It’s not the × that you can move, but the cannon. Try dragging it.
- Focus on aiming at the 'center' of ×, not the edges. Adjust the angle to ensure it hits the center.
- Bring the cannon directly below (or beside) ×, then aim the muzzle at the center before firing.
🧠 Explanation & Key Points
This stage requires a shift in perspective, focusing on moving the firing side (the cannon) rather than meddling with the target itself. Initially, players tend to continuously fire cannonballs to try and break the ×, but simply pressing repeatedly won't change the shape. By dragging and aligning the cannon's position and angle to shoot directly at the center of ×, only part of the diagonal line breaks away, leaving the vertical and horizontal cross of '+' behind. Identifying which object can be moved and what needs to be broken to achieve the target shape requires observational skills and a bit of trial and error.
🔍 Common Mistakes
- Persistently pressing the cannonball button to forcefully try to erase ×.
- Attempting to drag the × mark, which results in nothing happening.
- Only changing the cannon’s direction and not moving its position much, and continuing to fire.
- Aiming at the edges or the diagonal line of × without realizing the importance of hitting the center.
🎉 Post-Clear Advice
If you realize you can move the cannon, this stage is easily solvable. Developing a habit of 'just trying to touch everything' on objects will make future puzzle challenges easier to solve.