This is really recent but getting the achievement Tankbuster in L4D (i think its called Tankbuster). To get it you have to kill a tank without any of the survivors taking damage, and what made it special was that i got it the first time i ever played. Also during my first multiplayer game i got the achievements for jumping on two survivors as a hunter in one life and constricting two survivors as a smoker in one life.

Oh and beating the CoD4 bonus plane level on Veteran, which surprisingly didnt take long

Lol my most favorites r from bad company. Theres ones like lumberjack and never used a door, both include destruction. Oh and the best is hypochondriac, lol inject urself 50x with the auto healer.

Finally beating Marvel Ultimate Alliance, the game was pretty long I thought. Best $12 I have spent in a long time. I really enjoyed the boss battles. Now I have to find all those dang simulator discs in the game.

Flap Jack452:
This is really recent but getting the achievement Tankbuster in L4D (i think its called Tankbuster). To get it you have to kill a tank without any of the survivors taking damage, and what made it special was that i got it the first time i ever played. Also during my first multiplayer game i got the achievements for jumping on two survivors as a hunter in one life and constricting two survivors as a smoker in one life.

i got the barfbagged one where you have to vomit on all the survivors it was epic\
Protip: no mercy when they tryu to melae down the door in the were house thats when you get em

favorite: beating gears 2 on insane. recent: beating mirrors edge.

Rock Immortal Inductee - Rock Band 2.
-Makes you feel awesome playing through all those great songs.

Master of Disguise - Team Fortress 2.
-Got this one by accident, but proud that I didn't blow my cover like normal.

All 4 Dead in L4D, kill all survivors as a tank.

I got them all with 1 swipe of a car in the alley of the first stage of No Mercy.

My favorite would probably getting all the side quest achievements in Fallout 3, which I intend to do twice more for the evil and neutral achievements, as well as the fact that the Wasteland deserves at least 2 playthroughs.

My most recent is unlocking all the supply points in Crackdown.

I haven't recently done anything noteworthy, though I'd say that my favorite accomplishment would be getting good enough at Tekken 5 to where fighting Tekken Lords on Ultra Hard difficulty feels like Normal mode.

I was the first person in the UK to get 1000 gamerpoints on Overlord according to mygamercard.net which was nice =)

Most recently I destroyed a police hovercraft thing in Banjo Kazooie: Nuts & Bolts. Joy.

dieseldub:
Finally beating Marvel Ultimate Alliance, the game was pretty long I thought. Best $12 I have spent in a long time. I really enjoyed the boss battles. Now I have to find all those dang simulator discs in the game.

Crank it up to hard the second time through. There's more slots to spend on powers.

And when you get all the sims, you get Silver Surfer, and he just isn't fair.

- J

I'd say the season I played in ESPN College Hoops 2K5 where my starting point guard (controlled manually 100% of the time on defense and whenever he had the ball on offense) averaged 52 points, 20 assists, and 13 rebounds a game over the course of an entire season. I've beaten that game completely and utterly to death.

Probably not as impressive as the time in 1989 when I beat Contra without dying then repeated the feat in co-op with my brother in front of 10 kids from the neighborhood.

Talked my wife into letting me get L4D, Fallout 3, and Command and Conquer: Red Alert 3 all in one weekend.

Hey, you might not think its that big of an accomplishment, but this was right after I got my 37 inch monitor.

The WTFBBQ?!or whatever achievement in TF2.
Can't believe the guy walked right into that it was funny.
Actually managing to beat Boss Battle Mode on Intense difficulty (or whatever, I can't recall at the moment since it's been a while) by myself in SSBB

The Psychotic Prankster (or whatever) in Fallout 3.. putting a live grenade on someone with pickpocket is soooo damn funny.

I also presently working on finding and blowing up as many of the cars as I can find in that game.. gotta love the boom..

Eventually I might even get around to finishing the game!

Going 72-12 as Soldier on a TF2 server yesterday would be the most recent. Getting the achievement for 20 kills with the same Medic as Heavy in a legitimate game was another.

Found all the gems and made it to the final stage in Eversion last night too, that made me happy. :)

CoD 5's Gunslinger achievement. Amsel couldn't run fast enough. MUAHAHA

Oh, and of course reaching level 25 in Nacht Der Untoten. After that not even my MACHINE GUN FURY could stop them.
Damn those steel plated bastards.

The one free bullet.
on hard.

Glorious.