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Four Keys


4.4 ( 2464 ratings )
游戏 퍼즐 娱乐 액션
开发 Sungwon Jeong
自由

Using four keys to unlock boxes.
And save aliens as many as possible.

[How to play]
1. Tap a key which colour matches with bottom most box.
2. When you unlock every 10th box, you can save aliens.
3. Tap faster, and more aliens will be freed as a reward.