有国人玩这个吗？太坑了，第一关都不知道怎么开门，拉了枪后跳下去，杀了两个怪，然后往里面走一点又杀两个，就是找不到钥匙，有人知道怎么玩的请指点。谢谢！！~~~
Are there any people playing this? Too pit, the first hurdle do not know how to open the door, pull the gun after jumping down, killing two strange, and then go inside a little, and kill two, that is, can not find the key, someone knows how to play, please point out. Thank you！！ ~ ~ ~