It always surprises me that Ayu doesn't have many songs in video games. When I first listened to her music and realized how hugely popular she was for an entire decade, I was expecting to see her songs in many games but that's not the case at all.
Even though I haven't played much of Final Fantasy, I'll always be thankful to FFX-2 since it was my first contact with Japanese pop music. And that moment literally changed my life forever.
Now I'm nostalgic.