Below is a complete list of updates to our achievement lists and guides for the month of December, as well as a list of those who contributed to the updates. Our thanks to all who contributed!

Achievement Tiles/Secret Achievements Updated:
Age of Empires Online - 6 Updated
Assassin's Creed - 4 Updated (List Complete)
Battlefield 3 - 5 Updated (List Complete)
Breeze - 10 Updated (List Complete)
Doodle God - 18 Updated (List Complete)
Fruit Ninja Kinect - 6 Updated (List Complete)
Hole in the Wall: Deluxe Edition - 1 Updated
Implode! - 16 Updated (List Complete)
Joe Danger: Special Edition - 19 Updated
Kinect Fun Labs: Battle Stuff - 4 Updated (List Complete)
Kinect Sports: Season Two - 1 Updated
Mercury Hg - 3 Updated (List Complete)
Pinball FX 2 - 3 Added
Section 8: Prejudice - 33 Updated
Shuffle Party - 10 Updated (List Complete)
Sonic CD - 11 Updated

New DLC Achievements:
Assassin's Creed: Revelations - Ancestors Multiplayer Character Pack
Battlefield 3 - Back to Karkand
Defense Grid: The Awakening - You Monster
Duke Nukem Forever - The Doctor Who Cloned Me
Kinect Sports: Season Two - Maple Lakes Golf Pack; Midnight Mountain Ski Pack
Pinball FX 2 - Vengeance and Virtue
Renegade Ops - Coldstrike Campaign Pack
The Gunstringer - Real Big Shootin'
Warhammer 40,000: Space Marine - Chaos Unleashed
Worms Ultimate Mayhem - Single Player Pack
Your Shape: Fitness Evolved 2012 - Bundle Pack: Back in Shape Lose It & Jump Rope

New Awardables:
Castle Crashers - 1 Added
DiRT 3 - 1 Added

New Achievement Guides:
Call of Duty: Black Ops (Annihilation DLC)
Cro-Mag Rally
Dance Paradise
Gears of War 3 (RAAM's Shadow DLC)
Kinect Fun Labs: Musical Feet
Mortal Kombat Arcade Kollection

New Road Maps:
Cro-Mag Rally

New Retail Games:
Asura's Wrath
Kingdoms of Amalur: Reckoning
NeverDead
Soulcalibur V
The Darkness II
UFC Undisputed 3
Warriors Orochi 3

New Arcade Games:
All Zombies Must Die!
Joe Danger: Special Edition
NFL Blitz
Trine 2
Warp

New Windows Phone 7 Games:
Bug Village
BulletAsylum
Fragger
TextTwist 2
Toy Soldiers: Boot Camp

New Japanese Games:
Onechanbara Z: Kagura

Contributors:
RadicalSniper99, von deus, Lakeshow, niconline, Dark Sanji, mhkerr, litepink, LLTC, Achiever TM, Capn Doug, vmu, Fullmetalx07, darkenednight, sabazius, killergp123, MKLKT, Battletick, Arrogus, ScottieElisabeth, VonThronstahl, Plym, Blarghinator, Toy Story 3, jakepeter11