Guessed by @UnderwaterFunktown
I'm not one to get too nostalgic over the games of my childhood, even the games that meant the most to me as a kid, it's rarely something that I give much thought. Even going back to listen to some tunes of the games I loved growing up, or actually replaying them, I never get that "ugh, my childhood" vibe. Generally the things from my childhood that have sticked with me, are the things I still think highly of, even without the rose-tinted glasses.
...And then, there's Pokémon Gold & Silver. That isn't to say they're here only because of nostalgia value, because they are still fantastic games and I've thoroughly enjoyed replaying them at various different chapters of my life, but... man, my childhood. It's funny as a kid I actually played Pokémon Blue before this one, but this was always the special one, the one that stood out, a game that blowed my 9-year-old self away. And to some extent it still does, at least in regard to the insane amount of content they squeezed into that Game Boy Color cartridge, but anyway. This game wouldn't have continued to hold a special place in my heart all these years on if it wasn't special, but while the same can be said of many of my favorite childhood games, this is the only one that still gives me this kind of feeling. I'll always cherish it.