The Legend of Zelda, Paper Mario-series, Red Steel 2, Metroid-series (Metroid Prime), The World Ends With You, Mario Kart, Super Mario-games, Skies of Arcadia: Legends, Tales of Symphonia, Secret of Mana, Bomberman, Lufia, Pokemon, etc.
Super Smash Bros Brawl! How I wish the series was available for PS3/XBOX. I have such good memories playing this game with my friends.
Other favorites are the Ninja Gaiden Trilogy (NES), Conker's Bad Fur Day (N64), Super Mario Advance series (GBA), Metroid Prime (GBA), Mario Kart (N64).