Microsoft recently announced that it had changed the Xbox 360 warranty in the United States and Canada from 90 days to one year from the date of purchase, and now it's adding additional service enhancements.

Armored Core 4 will allow you to create your own mech from a few hundred components, including color, to give it an exclusive looks. Successfully completing missions, and purchase even more powerful parts to make your mech stronger. SEGA has released a playable demo on Xbox Live Marketplace, featuring 3 full levels and a handful of mechs to customize and test drive.

Why just walk like an Egyptian when you have a mystical winged scarab at your disposal? The smash-hit action puzzler, Luxor 2 will be available for download on Xbox LIVE Arcade for X360 beginning Wednesday, Apr. 4, at 9:00 a.m. GMT (2:00 a.m. PST).

Microsoft and Bungie confirmed the upcoming release of two new, downloadable maps for Halo 2. The maps will be available as premium downloadable content for Xbox and Xbox 360 on April 17.

Crackdown is an action-driving hybrid introducing a 3-dimensional persistent playground, highly innovative co-op gameplay and an extensive prop interaction system all while taking place in a massive and stylized urban center. Microsoft has released a new patch through Xbox Live improving the online gameplay experience, and increasing the number of ambient gang vehicles that populate Pacific City.

Ghost Recon Advanced Warfighter 2 will feature changing climate, improved AI, an advanced Cross-Com system, air strikes from jet fighters, new weapons and a new soldier class, the Medic.

Team17 is working on a patch for the Xbox Live Arcade edition of its turn-based strategy game Worms. Various issues / exploits are being addressed, faster AI, but mainly a problem with 4-player games crashing. Team17 is also working on downloadable content that did not make it in the original release due to the 50mb limit at the time, such as a new theme, a bunch of audio, a stack of additional voice-banks and the usual themes & gamer-pics.

Atari has released the first downloadable content for its action game Bullet Witch, including a free, brand-new White Witch costume for the game’s heroine Alicia, and a Bullet Witch Xbox 360 Theme pack. In addition, for 20 points each, players can download one brand new mission “Dynamite Beauty” and two enhanced versions of the "Clad in Streaming Black" mission featuring ‘Great Spells’ unlocked and a heightened level of difficulty, respectively.

Fuzion Frenzy 2 is a party game set in space that combines futuristic arcade action, superior mini-games, tournament modes, and custom tailored games with online features such as multiplayer and customizable tournaments.

Microsoft announced that TV series and movies from A&E Network, ADV Films, National Geographic and TotalVid.com will add to the more than 1,500 hours of downloadable entertainment content already available on Xbox LIVE in the U.S.

Microsoft announced the upcoming availability of Xbox 360 Elite, a new model of the video game and entertainment system that will include a 120GB hard drive, a high-definition multimedia interface (HDMI) port, a high-definition cable, and a premium black finish for the console, wireless controller and Xbox LIVE headset.

It's a whole new ballgame! Major League Baseball 2K7 redefines the pure baseball video game experience with true, next-gen details, all-new throwing mechanics and a revolutionary presentation system. Featuring stunning, lifelike player models, signature style animations, inside edge data and more...

Shivering Isles features more than 30 hours of new gameplay and allows you to explore an entirely new plane of Oblivion — the realm of Sheogorath, the Daedric Prince of Madness. You can continue playing with your existing save game/character, or create an all-new character just to explore the new content. Earlier than expected, Shivering Isles is now on Xbox Live Marketplace for 2400 Points (990mb).

Def Jam: Icon infuses hip-hop music, culture and lifestyle into the gameplay, bringing unique and innovative content to the next generation of gaming. Music will effect how players fight in each venue and environmental interactions and hazards will become a key strategy to staying alive.

A galactic test pilot's work is never done, and in Rare's Jetpac Refuelled gamers have to fight off pesky aliens while trying to build rockets to take them to their next destination. Jetpac Refuelled will be available for download exclusively on Xbox LIVE Arcade for Xbox 360 beginning Wednesday, March 28 at 0900 GMT (2:00 a.m. PDT).

Microsoft announced that Xbox Live, Xbox.com and the Xbox forums will be undergoing scheduled maintenance on Tuesday, March 27th, from 00:00 to 14:00h PST. As a result of this maintenance, those services will be unavailable during this time. This is purely some previously scheduled "back end" maintenance, and not a dashboard update, which will happen later this Spring.

Set 500 years after the original game, Fable 2 will offer even more choices and features, while building on the core gameplay theme of Fable where every choice continually defines who you become, allowing you to truly live the life you choose.

Microsoft announced that it is actively investigating "reports of fraudulent activity and account theft taking place on the Xbox Live network," after at least one Xbox Live user, over a month ago, complained about a hacked account and stolen credit card information, which the perpetrators then used to buy Microsoft Points, the virtual currency on Xbox Live.

The legendary 2D side-scrolling action adventure game from Konami, Castlevania: Symphony of Night, will be available for download on Xbox Live Arcade for Xbox 360 beginning Wednesday, March 21 at 0900 GMT (2 a.m. PDT).

Virtua Tennis 3 gives gamers the opportunity to experience new levels of realism never thought possible on a home console system with enhanced photo-realistic graphics and advanced player animations that perfectly match the behaviour and mannerisms of individual professional players. SEGA has released an 850 mb, freely downloadable, demo..

Bullet Witch is an action adventure taking place in the exceedingly bleak near future of 2013. Civilization is on the brink of extinction after demons begin appearing on the earth, and the player wades into the fray as a witch named Alicia.

Viva Pinata brings a vibrant world of living pinata animals to video games, television and beyond. The Viva Pinata universe showcases an engaging cast of colorful, wild-roaming pinata animals that entertain and challenge imaginations. Microsoft has finally released a free 1Gig demo for Rare's colorful pinata experience.

Everyone's favorite totally tubular turtles bring their radical ninja skills to Xbox Live Arcade. Konami's 1989 arcade classic, Teenage Mutant Ninja Turtles, will be available for download on Xbox Live Arcade for Xbox 360 beginning Wednesday, March 14 at 0900 GMT (2 a.m. PDT).

There is a probability, and willingness, to bring Introversion's Darwinia, combined with the just announced Multiwinia multiplayer component, on Xbox Live Arcade. A German interview with Introversion's Mark Morris and Tom Arundel at the GDC reveals that the company would be more than willing to bring a Darwinia Gold edition to Xbox Live if there were enough interest from some publisher to support them.