Games you've played so much you have them completely memorized

" Banjo-Kazooie, Banjo-Tooie, Super Mario 64, Mario Kart 64, MGS1 "

CAN'T LET YOU DO THAT STAR FOX

Resident Evil 4. I literally know that game moment for moment.

Deus Ex.

Early Pokemon games, Mass Effect 1/2 and Fallout 3 to some extent .

Resident Evil series, Silent Hill series, Metal Gear Solid series.

GTA Vice City, Max Payne 1 & 2, SMB3, Donkey Kong 1, MGS1. Those are the games that I can remember now, but there are probably some more.

Only person in the entire universe and the future of the universe who is going to say Heroes Of Might And Magic: Quest For The Dragonbone Staff for the PS2

It's basically a completely faithful remake of King's Bounty, which is a game I played a bunch, so when I started the PS2 game I already knew where everything was, and then I finished that game for another couple of dozen times, so yeah.
Throughout the game you unlock squares on a treasure map that leads you to the titular Dragonbone Staff, and I can usually tell where it is after unlocking 2 squares (I want to say that there's 25 squares on the map, but I may be totally wrong)

Fable 1

Demon's Souls. I can tell you anything about that game. Anything.

I don't completely memorize any games.

SAN ANDREAS!!!!!

Pokemon Blue and Dead Rising.

Diablo and Diablo 2.  World of Warcraft.  (Not that you can memorize the whole thing, but I've been through the game enough times)

" Full Throttle "

Silent Hill (I completed it six times over a weekend when it first came out), Metal Gear Solid, Sonic the Hedgehog (it was the only Megadrive game I actually owned, back in the days of having no money. Everything else was rented.), Shinobi (arcade), Tenchu: Stealth Assassins, Metal Gear Solid 2...

Flashback on the SNES. Probably some more. You never really set out to memorize anything, you just retain a lot of otherwise pointless information as a gamer.

Shinobi, though...You could staple a Rottweiler to my face, and I'd still run through it.

Pokemon Red/Blue/Yellow.

Knights of the Old republic!

" Resident Evil series, Silent Hill series, Metal Gear Solid series. "

legend of dragoons

BF2 maps
CS:S maps
F.E.A.R.
GTA3 through 4
Max Payne games
Crysis

" In terms of city layouts, GTA III and Vice City. I can visualize getting from almost any point to any other point.

Great games.

"

oh Man, my cousin pretty much has memorized every worth while game since 1991. We did an endurance run of Chrono Trigger a few months back and he knew almost every line of dialogue and where every secret is. Now we are trying to do a tag-team replay of all Resident Evils from 1-5. We are just finishing up 1 and he can speak every line that the characters say with eerie precision. What's more is the last time he played these games was when they were new... crazy.

Jak 3 is downloaded to my brain.

Well I have so much game that suit this criteria =)

" Demon's Souls. I can tell you anything about that game. Anything. "

I can recall the location and contents of pretty much every chest/item in Final Fantasy VII.

Diablo II. And I guess Gen I, II and maybe III of Pokémon.

I'm sure there are others.

The original Mass Effect, know everything about it since I finished it five times

Demons Souls

Ocarina of Time, Dead Space 1.

Mass Effect - in the sense that I know almost all the non-chosen dialogue (and even a good bit of that, just won't claim to know it all)
I know most of the power exploits, know how to double up on minerals/tags/writings. I remember smaller moments from a lot of conversations - for some reason a stand out is Nihlus's jaw things twitching when you see Sovereign for the first time, or dealing with the crazed colonists in Zhu's Hope.

I was showing it off to a friend of mine a few years ago, doing Eden Prime mission and he's walking along, I say 'Got a burned out building here.....lottttta bodies'
then of course Nihlus says it. My friend just looked over at me and with a completely deadpan expression goes 'So you've played this game how many times?'

Pokemon Blue and Ocaraina of Time turned into to-do lists rather than games because I knew them in and out by that point. Also the first Metroid. God damn I loved that game.

I'm already there with RE4 and I'm getting pretty close to that point with Dead Space 2. I've already beat it six times it is so damn good.

I'd probably say the game I remember the most things about is EarthBound. Also a whole bunch of SNES beat em ups like TMNT: Turtles in Time, Final Fight 2 and Battletoads in Battlemaniacs (At least up until right after the underground ball pit bikes level)

Spyro the Dragon!

Crysis, I can't believe i'm still playing it now. Sometimes I discover new paths even today because the levels are way too big. But I know like every single enemy emplacement, level and stuff down to every detail.

Baldur's Gate 2.   Which I am in the middle of play again for an unknown number of times. 

CoD4 and Portal

Pokemon Red/Blue

Closest would probably be Final Fantasy X because I played through it three times because each time I would manage to lose my memory card. Other than that, I don't really replay games to that point.

Another World is probably the only one I could still draw you a complete map of from memory, it certainly helps that its a relatively short game. That aside, I don't think there is anything I played that often that I actually remember every single bit of it.

Portal 1, RE1, RE2, and RE4, Bayonetta, Vanquish, Super Mario 64/Super Mario Bros. 3, MGS1 and MGS4, BioShock. I could probably go on. There's a lot of games I end up memorizing mostly through repeated playthroughs and those games are the ones I've played through the most.

" @FunExplosions said:

" Demon's Souls. I can tell you anything about that game. Anything. "

You positive about that? "

Mega Man X. It was one of the first games I owned on my SNES, and I've beaten it multiple times with getting all of the items and secrets (including the Hadoken)

Mass Effect 2