Have you ever beat an entire game in a single sitting/day?

This is generally how I get through Halo games. Run through campaign on normal for a day off.

Solitaire.

Poke Park Wii comes to mind, though it took longer to 100% it. Awesomely doofy fun, regardless.

The last one was Deus Ex: Invisible War, I think.

If counting replays a lot otherwise somewhat less but still more than enough to remember.

I beat Costume Quest 100% in one sitting.

Metal Gear Solid 4 in 17 hours, back when it first came out.

I lost track of the time...

I'd say games that are meant to be beat in one go (Bad Dudes Vs Dragon Ninja and Aladdin which don't even have a Password Save, and arguably Portal) shouldn't really count.

But outside of this type of games, the fastest I've ever beat one was The Legend Of Zelda: A Link To The Past, and my record is two days, not one.

edited 24th Jan '11 6:33:35 AM by Medinoc

I'm not sure if I have (or if I have, I certainly can't remember it), but I know for a fact I could beat MGS 4 on the hardest difficulty in a few hours if I wanted to. Skipping all cutscenes, of course.

Don't think I remember doing anything like that.

I recall beating a JRPG within a single sitting. Can't recall which one it was now, though.

I just recall thinking, "Wow. I haven't slept at all, but I really need to see how this ends."

I'd be surprised if I haven't done Ocarina of Time in a day.

Yes, did that long ago with Sonic 3D: Flickies' Island on Megadrive, in half a day.

I just did this with Prince Of Persia: The Forgotten Sands, actually. My fingers ached from trying to do all the acrobatics on my keyboard.

Back in the day when I still had it, I could beat Megaman X4 in one sitting in like an hour or two.

Slightly crazier: Tales of Vesperia, for the speed-run achievement that requires you to beat the game in under 15 hours.

I played Final Fantasy IV (then known as II) straight through without sleeping or eating when I first got it. You can do that stuff when you're a teenager, I guess. :P

The Medal of Honor reboot and Halo 3. I would've beaten Halo ODST in a single day as well but I got caught up in doing the sidequests about the city monitor and getting some of the achievements, so it ended up taking me three days on that one.

I beat Turok (N64) in 5 hours, then I saw someone beat it in 40 minutes

If it makes you feel any better, that was probably a TAS. The fastest verified speedrun of Turok is a little over an hour.

On topic. Most recently, I've done this with Portal and Batman Arkham Asylum. Portal was a second run, though.

I did that with modern warfare 2.

I did it with the Genesis Sonic titles and Sonic Colors a couple weeks ago. It helps that they're all pick-up-and-play games.

Metal Gear Solid 4 in 17 hours, back when it first came out.

Did you skip all the cutscenes or something? I mean, I did MGS 3 and it took me a whole freaking day. But MGS 4 is at least three times longer than 3.

edited 24th Jan '11 9:30:23 AM by juancarlos11

The Smurfs on the SNES had a Password Save, but the last Act turned out to be so frustratingly difficult that starting there was a guaranteed Game Over. So the best strategy was to play it entirely in one go, collecting 1-Ups along the way to spend them all in the last Act.

edited 24th Jan '11 9:26:45 AM by Medinoc

Initially beat the key stuff in one day on Super Smash Bros. Brawl, though all of the Zelda games took me more than one day.

Mario Kart: Double Dash took me a single day to beat all the Circuits.

I did beat Quest 64 in one sitting, technically. I had to leave the n64 on for 3 days, but I had school and such, and no memory card. So it would've probably taken me a single day at most. On the other hand, it was my first time playing through, so I took my time on it.

Modern Warfare 2, Tom Clancy's HAWX.

Assassins Creed. I didn't hang around there.