I'm only 15, so I don't have as many memories as others. Still, l'll always remember the first time I played Pokemon X. I'm super scared of thunderstorms, and where I live, we have a lot of them. So one June day, a golf tournament I was supposed to play in was cancelled due to flooding. On the way home, my mom let me get a video game to calm me down from the thunder and lightning. I chose Pokemon X. When I got home, I literally played it for 6 hours straight, and made it all the way to Camphrier town. IDK why, but the calming music, small fountain, the (totally useless) castle all have a certain charm.
Oh, and bonus. It's weird what the Johto games' music can do.... I first played Silver when it was originally released on VC, yet the Azalea Town and Cianwood City themes made me feel like I was replaying the game for the first time in 15 years, even though I wasn't even that old at the time. It was a weird feeling of nostalgia that I shouldn't even have.