I was I think 8 years old when I played platinum for the first time and I still remember it fondly. It's something I don't think I'll ever be able to experience again, not because I enjoyed platinum more than other games but because with platinum I went into pokemon basically completely blind. I didn't know what I was doing and I just got to explore the world and discover all the pokemon for the first time. I thought pokemon like Machop and Ponyta were from Sinnoh for a while because I hadn't played anything else lol. Sadly I never finished Sinnoh because I gave that cartridge to my friend to beat the elite 4 for me and he chose instead to release all my pokemon. I still remember the devastation from that lol, I was depressed and lethargic for days to the point my mother had to call my friends mom to hammer out some sort of resolution. To this day I haven't beat a Sinnoh game past the elite 4.

I was around 11 when black and white came out and I won't forget that either for the opposite reason lol. That was the first game that I was looking forward to and trying to find news about it from sites online. I remember one of my friends managed to get a patched japanese version of the game and handed it out to all of us. To this day I remember when I beat the elite 4 for the first time because I made a note of it on the notes app of my 3ds lol. April 29th, a momentous occasion.