Pokemon as most of you would probably say.
Aside from Pokemon, I played games such as Spryo, which I loved the Year of The Dragon version, spent countless hours on it. The Bomberman Series, especially the Fantasy Race where you ride on Rhinos and Rabbits. PES 2, where I spent countless of hours playing Master League, where I created my all-star team. Sonic R, the songs in the soundtrack are brilliant. And Snakes on my mother's nokia phone.