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Bright color language
Clear colors make every tube easy to read at a glance.
👆
Simple interaction
Tap-based moves keep attention on the puzzle, not the controls.
📈
Gradual difficulty
Levels can introduce more colors and tighter decisions over time.
💾
Local progress
Progress and settings can stay on the device for quick continuation.
🔈
Preference controls
Sound or music choices can be stored as simple local settings.
🧩
Replayable puzzles
Short levels make it easy to play one quick round or continue longer.