Rocksteady Studios has unveiled the latest trailer for their Batman: Arkham City DLC pack Harley Quinn's Revenge. This new pack adds more than two hours of original gameplay to the critically-acclaimed interactive title.

Harley Quinn's Revenge will be available to purchase from May 29th on both Xbox LIVE (800 Microsoft Points) and PlayStation Network ($9.99) - also included in the Game of the Year Edition of Batman: Arkham City, which will be available on May 29th in North America and in September in Europe, Australia and other territories.

The Harley Quinn's Revenge mission sends players back into Arkham City to face their final challenge as they interchange between playing as both Batman and Robin. Gamers must utilize each of the characters' unique combat and investigative skills to uncover Harley's vengeful plan and shut the gates on the urban mega-prison forever. In addition to experiencing a new storyline, fans can explore new environments and face-off against Harley's all new gang of thugs.

Batman: Arkham City builds upon the intense, atmospheric foundation of Batman: Arkham Asylum, sending players flying through the expansive Arkham City - five times larger than the game world in Batman: Arkham Asylum - the new maximum security "home" for all of Gotham City's thugs, gangsters and insane criminal masterminds. Featuring an incredible Rogues Gallery of Gotham City's most dangerous criminals including Catwoman, The Joker, The Riddler, Two-Face, Harley Quinn, The Penguin, Mr. Freeze and many others, the game allows players to genuinely experience what it feels like to be The Dark Knight delivering justice on the streets of Gotham City.

Hit the jump for the trailer.

A few days ago we reported that Turn 10 Studios is preparing the next chapter in their Forza history: the new Forza Horizon. And now they have revealed the cover of the game, plus a screenshot that reveals that the new generation SRT Viper will be one of the cars featured in the game.

"The first screenshot of Forza Horizon is here! Coming this fall for Xbox 360, Forza Horizon combines the automotive thrills that Forza fans expect with a gorgeous open-road world that begs to be explored"

"Our goal is to turn gamers into car lovers, and car lovers into gamers," Forza 4 director Dan Greenawalt said. "This is part of our DNA. That's why we've been working on this series for more than 10 years. Our goal is to take people who play Skyrim and Call of Duty and make them in racing game players. That is why I come to work every day."

The new Forza Horizon will be available this fall for the Xbox 360.

Nintendo is preparing to unveil their new Mario Tennis Open for the portable Nintendo 3DS system on May 25. And the first details offered on the game, suggest that in addition to the variety of fun tennis games with a Mario twist in Special Games mode, fans will be able to connect with friends for online matches, enjoy new StreetPass features and unlock bonus game characters through game play and special QR Codes.

The Special Games mode in Mario Tennis Open lets players hone their tennis skills while enjoying tennis games with a Mario twist. Players can check out games such as Super Mario Tennis, which puts a classic Super Mario Bros. twist on tennis drilling. As they play through familiar game levels, they can use their tennis swing to stomp Goombas, and Koopas along the way.

People can play as their favourite characters from the Mushroom Kingdom or even compete as their Mii characters. They can also customise their Mii characters with Mushroom Kingdom-themed tennis gear, which not only enhances players' appearances but also can boost their stats. The wide selection of available gear includes Bowser's favourite racket, a Bullet Bill outfit and Peach's tennis shoes.

In addition to a singles tennis match mode, another mode in the game lets up to four players compete online in multiplayer doubles matches. Players can also compete online for leaderboard standings in the Open Match mode.

Hit the jump to find out more about the new Mario Tennis Open.

Rockstar Games has dropped the first details on their new Max Payne 3 arcade modes: Score Attack and New York Minute that will bring "intense bonus shootout challenges to the single-player game experience."

Max Payne 3's Arcade Modes bring intense bonus shootout challenges to the single-player game experience - featuring "Score Attack" and the return of the classic "New York Minute" mode from the first two Max Payne games in explosive form. In addition to the trill of besting your own top scores (and the scores of all your Friends and Crew members at the new Social Club), high scores also reward you exclusive multiplayer avatars and XP benefits.

Hit the jump to read more about the two arcade modes.

If you remember, a few days ago Activision announced a new Content Collection 2 for Call of Duty Modern Warfare 3 that includes a new competitive mode called Face Off. And now the company has dropped a pretty cool trailer video that teaches you almost everything there is to know about Face Off. It features smaller, super-concentrated multiplayer maps specially designed for Face Off to encourage strategy, skill, and teamwork like never before.

"Grab a friend and experience an all-new way to play Call of Duty multiplayer. Infinity Ward, Sledgehammer Games, and Raven Software discuss the ALL-NEW Face Off gameplay style and Collection 2 DLC in this behind-the-scenes multiplayer video for Call of Duty: Modern Warfare 3. Two free Face Off Maps will be made available on May 16th for XBOX LIVE. Two additional Face Off maps will be available for purchase as part of the Collection 2 DLC pack for XBOX LIVE on May 22nd."

Hit the jump to watch the trailer..