It's a bit of a weird one, but one of the bosses from The Legend of Zelda: Phantom Hourglass really stood out to me.
The DS was my first device with a touchscreen or multiple screens. I didn't get it until early 2008, partially because of my PC gaming and GBA filling my entertainment needs, but also because I just didn't get the DS.
Anyhow, as somebody who had some experience with Zelda, the game was a great way to kind of ease me into touch controls and dual screens. But it wasn't until the third boss that I was really sold on the DS.
Long story short, the boss becomes invisible, but you can see whatever they're looking at on the other screen. In other words, the game becomes sort of a second person shooter.
At that point, I understood the DS. Other instances convinced me that dual screens could be a good idea, but this was what convinced me that they were the future. And in the process, this was the beginning of me getting really into gaming.
About a year and a half later, I joined VGChartz.
Love and tolerate.