definition of second person
Definition: "Second person" refers to the point of view from which a narrative is told. A story told in second person is addressed to "you" (see example, below). This point of view is very difficult to use effectively; if the reader feels that the story is addressed to them, that they are being told what they supposedly did, they will find it very hard to believe in the story.
Example: You got in your car and drove away. You were so angry you could hardly focus on the road, and eventually you had to pull over and calm down. You didn't want to run over some poor pedestrian just because all you could see was red.
in gaming this would refer to seeing the game through the eyes of another character that you're not controlling.
since this would be a quite fucked up way to control a character, there aren't any games that I can think of that are like that.