I remember the games that I had the most fun with more than anything else, and I'm going to include the Wii in these experiences since it really stands out for me: Atari 2600 - playing combat with siblings and parents. Lots of fun with this one. Too many hours to count. NES: Super Mario Brothers, the first game: Within the first five seconds, the game's controls had me hooked. Nothing plays quite like a mario title, I can still jump back into a Mario session and remember the secrets. Genesis: Dune: The Battle for Arakkis. RTS on the Genesis done right. Way too many hours spent here. Dark Wizard on the Sega CD sucked up even more of my time, although it wasn't real time. Dreamcast: Crazy Taxi! Many many hours blown away on this game. I still play it. I also played imported DDR titles at home first on the Dreamcast. Wii: Swinging the remote, and actually feel like I'm playing tennis in Wii Sports. Other tennis games feel little different from pong; I played that out in the late 70s. EDIT: Just remembered one experience on the Gamecube: Watching the main character's head explode in Eternal Darkness, only to find out that it was only a low sanity meter and going right back to that spot in the game. I remember bugs crawling on the screen, volume controls apparently changing, walls slanting, and various other tricks obviously aimed at the player instead of the in-game character. That's something I'd like to see more of in games, the experience hasn't been duplicated since.