-“下”、“左”、“右”键控制方向，“上”为变形；

-游戏开始前、暂停时可调整难度；

-难度分“简单”、“中等”、“困难”三级；

-对应的分值为10、20、40；

-多行同时消去的倍数为1、4、10、20；--　down ,　left ,　right　key control direction,　on　for the deformation

- before the game starts, the suspension can adjust the difficulty

- difficulty points　simple ,　medium ,　difficult　three

- the corresponding scores were 10, 20, 40

Multiple lines simultaneously eliminate multiple of 1, 4, 10, 20