在第三章，冰冷的心中可解锁此隐藏成就。
In the third chapter, A Cold Heart we can unlock the secret achivement.

第三章第三部分第一关，先到如图位置，花费9步
Chapter 3, Part 3, Level 1. First, spend 9 moves to the position.

接下来就考验手速了，先把上方的水滴往下移，与此同时把右侧的水滴往左移动，花费11步道如图位置
Next 2 moves really depend on the hands' speed, first move the above droplet down, at the same time, move the right droplet to left. Until now we have spent 11 moves.

剩下就容易了，按图示走完，最后只用了20步完成关卡（完美为22步）
After the hardest step, just follow the moves in the picture, we can finish the level in 20 moves (perfect is 22 moves)

隐藏成就就解锁，全章节只用了162步
Unlock the secret achivement, the whole chapter just used 162 moves