Barely anything. Certain specific aspects like the towns / gym leaders, the Mew rumors, and stupid annoyances like having to switch boxes manually to catch more pokemon, those I remember. But specific battles, my first team, that sort of thing I can't really remember too well.
I wasn't really that young (I was in my early teens IIRC) but it was still a long, long time ago, and honestly the specific Pokemon games have never been that memorable to me.
Pokemon itself, as a whole experience, is definately something that made a huge impact on me, instantly becomming one of my favorite series' of all time. But specific games, not so much. My mind mainly tends to group everything Pokemon into one large cluster, not anything like specifically remembering Pokemon Blue or anything.
~ Master of Electricity ~ Electro: 0518-6613-7620 - Pokemon White