I have also encountered your problem. If you exclude the factors of your mobile phone configuration, then there is something wrong with the game you downloaded. For example, if you download it with ads, it may freeze. Download it again. It is recommended to use 360 ??Mobile Assistant. It will prompt you if there are advertisements. You can also read the comments below. I have completed both of these games with 360 Mobile Assistant. If it still doesn't work, there's something wrong with your phone.