Pokemon Blue/Red for GB and Kirby's Dreamland 2. Gundam Wing Endless Duel followed shortly after. Although the first game I wanted to download months before without knowing what was an emulator was Kirby 64 (still about a year old at that time)

I remember the first time I heard about emulating and thought I had to download the Pokemon rom twice for my other sibling to play. And boy I loved tweaking the settings on Snes9x.