That game I beat was Saints Row 4. Well sort of...
Basically I did the crappy ending which meant I beat the game having only done 4 or 5 missions. I was sort of disappointed when the end credits came up having only played the game for a few hours. After them and an achievement I had to retry from the last check point so it wasn't over yet.

My Games That Beat Are

Banjo-Kazooie
Banjo-Tooie
Banjo-Kazooie: Nuts & Bolts
Conker's Bad Fur Day
Grand Theft Auto 4
Grand Theft Auto 4 The Ballad Of Gay Tony
Grand Theft Auto 4 The Lost & Damned
Grand Theft Auto 5
Red Dead Redemption
Red Dead Redemption: Undead Nightmare

The last game  I beat was AVGN adventures and all I have to say is I felt like the nerd when I was playing the game cause I was cussing like him. This game is ridiculously hard and I recommend it to any one who likes old school side scrollers. 

I have just play Super Punchout for SNES & beat Super Macho & became the Heavyweight champion twice so I guess that counts as beating the game.... there that thing that appears after becoming the World Heavyweight Champion called Special Circuit but I can't seem to get at the Special Circuit..... in the World Heavyweight circuit both times I have just beat I have ended up 4 wins & 3 losses I am wondering & guessing I have to do more than that for Special Circuit to become available!!

The last game I beat would of been yesterday when I played Grand Theft Auto 4, I finally finished it the missions were so easy.. I don't plan on playing another GTA game I just wanted to finish this one sense I had already started it a while back.

The last game I beat was a few days ago when I decided to just dive in and beat Paper Mario: the Thousand Year Door again. It's such a colourful game. However, last time I rage quit because I was on the last floor of the Pit of 100 Trials and died.

Just finished Saints Row The Third again. I prefer it over GTA mainly for its stupidity. However it's open world is not as good but the game itself in my opinion is better than GTA and the story is also better. Any game that lets you go nude and use a giant dildo as a weapon is automatically a great game.

my friend and i had actually just beat resident evil 5 the other day, but by myself, i think it was one of the old crash bamdicoot games a while ago

The last game I beat was Donkey Kong for the 5 time... I love this game so very much.. it took some skill when I first started but now when I play it, it is so very easy and I play pretty fluently.. it amazes me how one day you don't know how to play something and then the next you can learn all about it.. it's pretty awesome to experince.

As of this post, the last game I beat was Metal Gear Solid 4. That was about a week ago. Now I'm going through it again for trophies.

Surgiac: Guns of the Patriots? Since when does that game have trophies? it sure didn't when I bought it, mind you that was years ago.

Yesterday I sat and played through all of The Legend of Zelda: A Link to the Past. Only taking one 8 minute break just before starting the dark worlds 6th dungeon. It took me just under 7 hours and it only took that long because of minor speed bumps. Like losing my darn shield. I collected everything except for 4 heart pieces as I didn't need them nor did I want to sit and dig for hours just to find the one so I didn't even bother with the other 3.

The last game i beat was Mario & Luigi Dream Team (Bros.).
I got all the Pi'illos, beat a spoiling battle at level 42 (The last boss)
Not all the beans though, I have all the Bros./Luiginary attacks.
I am Level 44 for both now, also, Luigi his stats is much stronger then Mario's stats.
I saved in a bed in Pi'illo Castle. (Lol)
I beat this game in 53 Hours. 
This game is fun, i'd give it a 9.7/10.
The Story is Great.
The Graphics is Glorious! (Except when Dreambert get REALLY mad at the Dream Stone's Dream Illusion at Dreamy Dozing Sands, his sprite... Gets too big and it's like a bad 8-Bit version of Dreambert.)
I have not beaten all the Bosses at the Battle Arena. Because i am running low on money (751 coins)
The music is AMAZING! :p
The game is so short, and still feels like FOREVER to complete it! (Pi'illo Caste>Mushrise Part>Dozing Sands>Wakeport>Mount Pajamaja>Driftwood Shore>Pi'illo Castle (Ultibed) >Mount Pajamaja>Dozing Sands>Driftwood Shore>Pi'illo Castle (Battle Arena)>Mushrise Part>Somnom Woods>Neo Bowser Castle>Final Boss, pretty short, right? LOL)
Aaand, pretty much a great game! :p

I've just beat Red Dead Redemption.... this game was totally INSANE especially the ending...... I really can't wait for Red Dead Redemption 2..... I'm also planning on getting Microsoft points so I can download the expansion pack Undead Nightmare I am really EXCITED about it!!

I beat Dragon Age 2 a few nights ago. Loved that my favourite character from the first game popped up at the end...I did not expect that. I really, really enjoyed that game and started playing again the next night.

Far Cry 3 Blood Dragon and Killzone Mercenary and i beat Killzone Shadowfall at a friends house

I hate to say this but I think it was Tomb Raider Lara Croft & Resident Evil on Play Station

Fable 3

The last game I beat was Zelda A Link Between Worlds for 3ds and I gotta say it is a stunning achievement!!

The last game I beat was Call of Duty Ghost. It was fun, and the ending was a little sad. I was happy when I beat it though .

I haven't been playing many games since I started reading A Song of Ice and Fire, but I think the last game I beat was Super Mario 3D World.