If you agree with me that the guy on the left looks like an idiot, you're right: he is! If you agree with me that the girlfriend in front of him looks pretty good, you have good taste! And if you're wondering what the handsome guy behind her is doing there, I suggest you play my very first game: "It could be worse!"
In order for you to be able to install this game, you need to enable (allow) installation of applications from unknown sources (Unknown sources) in the phone settings. Usually this item is in the Security section