This is how Ryan finds Twilight goes in Thomas and Twilight's Racing Adventure.
[Meanwhile, Ryan is looking for Twilight with Wheatley and GLaDOS from Portal]
Wheatley: Umm. Ryan? Why are you looking for Twilight Sparkle?
Ryan F-Freeman: Because, Wheatley, she thinks Thomas has a new girlfriend
GLaDOS: Oh, you are kidding me.
Ryan F-Freeman: I'm not joking, GLaDOS. At least you learn about me from the Alpha Gang. I just think Twilight might be around here somewhere.
[Ryan looks around and saw Twilight]
Wheatley: Is that a purple alicorn?
Ryan F-Freeman: Yes. Her name is Twilight Sparkle. The Princess of Friendship.