I was wondering if there were any games from the past generation that you've played through several times over. I'm sure that there are arcade style games like Rez, R-type Final, Crazy Taxi, etc. which lend themselves to multiple play-thrus, and while I'd like to hear about them all, I'm really wondering if there are any more conventional games you've found yourself going back to?
For some reason, whenever I feel a need to fire up my PS2 (or PS3 now, since I really just use it for PS2 games) I end up putting in Onimusha 2: Samurai's Destiny. I just mean to play it for a few minutes to kill a little time, but I end up playing through the entire game EVERY SINGLE TIME. I must have played through the entire game at least 10 times over. It's something about the gift exchange system, and the subtle branching paths that the story can take I think that gets me going, I think. I don't read FAQs or strategy guides, unless I've already beaten a game, but I never check out either for Onimusha 2, and always opt to explore the character interactions on my own and work from memory. I also love the length of the game (it's short by modern gaming standards), and the game play itself is just so solid. I think it's the perfect combination of horror, hack and slash action, and adventure.
Bujingai: The Forbidden City is another game I've played through a few times, which is a little strange since most wouldn't want to play through it even once. I'm big fan of Japanese flair and style over substance game play though. I really don't mind mindless hacking so long as your character looks good doing it, and in that respect Bujingai delivers in spades.
Baldur's Gate: Dark Alliance I've played through at least 3 times. It's really one of those games that's hard to put down. I always tell myself "just one more level", but I find myself playing it throughout the night more often than not. It's a very addictive game that's extremely good at what it does.
Resident Evil Code: Veronica I've played though this game so much on the Dreamcast that I could make it through the entire game using ONLY the knife (sans a few boss fights) and end it in about 2 hours. I'd play this game almost every day, and my s/o would sit and watch me play it pretty much every time. I must have ended it 30 times at least.
HALO: Combat Evolved I've played through more times than I can count. Usually co-op, with the other half.
P.N.03: Product Number I've never actually ended this game, but I've gotten close, and I'd played it so much that it's ridiculous. I don't know why I'd start over, but I had several times. I'd play this game and try to make perfect runs through it, I think that that's the reason I'd replay old ground I covered so much.
Mario Kart Wii isn't a game that fits on the list since it's current generation AND it's essentially an arcadey cart racer, however, it is the reason that I never play ANY other Wii game. I have over 50 Wii games, and I honestly couldn't tell you shit about any of them except for Mario Kart Wii, Wii Sports, and We Cheer 1 and 2 (my wife plays them). I've spent more hours MKW it than any game in recent history, and to date it's the only game that I've ever committed to playing online.
Those are just a few off the top of my head. The reason that I thought about this is because I have a MASSIVE back log of games in my collection and yet I find myself returning to the same games over and over again before I give any of the hundreds of other games that haven't even been opened get a shot. I've pretty much put this console generation on hold because I keep going back to my favorites from this past generation. I wonder if anyone else here have this tendency as well?