As you probably read last week, GameSpot AU was lucky enough to fly to the US last month to check out some of Sierra's upcoming games at the Sierra Spring Event. If you haven't read Part One of our extensive peek—where we talk about World In Conflict, The Bourne Conspiracy, and Sea Life Safari--check it out by clicking here. But for now, check out the rest of the games that were on show by reading below!

　　One of the demonstrated titles we're closely following the development of is Prototype, a new IP from Radical Entertainment promising an open-world slaughter-fest as you take control of angry biological experiment subject Alex Mercer. We had a chance to check out the latest pre-alpha build of the game, and it's already looking very polished. If the expansiveness of the GTA series cities appeals to you, the climb anything concept of Assassin's Creed tickles your fancy, and you're looking for the odd Grisham story twist, this could well be for you. For our full impressions, check out our full GameSpot preview here . Prototype is slated for a 2009 release for the Xbox 360 and PS3.

　　Fiddy just wants his bling back.

　　Rapper 50 Cent will soon be back stalking the Xbox 360 and PS3 with 50 Cent: Blood In The Sand. At the 50 Cent booth at the Sierra Spring Event we were met by our guide, a dude straight from the whitest projects we've ever seen, and sporting an urban camouflage G-Unit shirt. 50 Cent's latest adventure sees him playing a show somewhere overseas, at the end of which the gig promoter pays him with a diamond-encrusted skull. The super-bling is subsequently stolen by "international gangsters" (yeah, you read that right) and Fiddy is pissed off enough to bust up the place to get it back. The game is a gangster-themed ultra-violent shooter with a smattering of features cobbled together from various other titles. There's the cover and the blind fire systems, timed kills with multipliers ala The Club, 20 different and brutal unlockable quick action counter-kills, and the dev team has thrown in Gangster Fire Mode (read: bullet time) for good measure. If you like your shooters a bit on the crazy side, this one is worth checking out, if only to solve the mystery of the missing diamond-skull.

　　Suck up zombies with a vacuum cleaner in Zombie Wranglers.

　　There was no shortage of big name games at the event, but nestled between 50 Cent's latest adventure and World in Conflict we came across a couple of nifty little Xbox Live games: Zombie Wranglers and Assault Heroes 2. Zombie Wranglers is being developed by Frozen Codebase and puts you in charge of a crack team of kids who bust zombies when no one is around to catch them at it. The game is a kooky cell-shaded title with an emphasis on fun. You'll spend your time punching through garbage cans and other environmental objects looking for hidden cash, running around, and stunning the living impaired before sucking them up in your magical soul vacuum cleaner. You're not philanthropist kids mind you; this is all about raising cash--in this case Zombucks--to spend on upgrades to your gear. During the game you'll choose from one of four characters, each with their own unique abilities. Uju is your resident mystic/voodoo worker, Monica is the local Goth, Amy plays the part of an audio specialist and rock music chick, while Dean knows his way around a weapon or two and handles the tech. The game is a lighthearted zombie romp with chapter names such as "The Zombie Code" and "Zombie Reloaded", each with distinct themes related to their names. There's even an homage to Katamari Damacy with a giant zombie ball boss to battle against.

　　Big action awaits in Assault Heroes 2.

　　Assault Heroes 2 also flew the flag for the Xbox Live Marketplace, offering new-comers to the series and those already familiar with the original the chance to battle in this top-down shooter. Like many arcade games it uses the left analog stick to drive your vehicle and the right to fire your weapons. The addition of three hijackable rides including a helicopter adds a new dimension to the established Assault Heroes gameplay. The title supports two-player co-operative play either online via Xbox Live or offline with two controllers. You'll also be able to tag team with your buddy, focusing fire by bouncing bullet streams off each other to achieve a weapon with huge spread and increased damage. The tried-and-true: shoot things, drive around, shoot some more, mechanics are easy to pick up and offer plenty of fun regardless of whether it's your first time or you're looking for another tour.

　　Slimer's back baby!

　　Our last game demo (which was unfortunately hands-off), was Ghostbusters running on the Xbox 360 and PlayStation 3 . The team from Terminal Reality says the game will follow on from the Hollywood movies, and sees you take on the role of the fifth Ghostbusters team member, a recruit joining three years after the events of the films. As a result, you'll revisit classic locations such as the New York library and the Ghostbusters' fire station headquarters between levels. After a brief tech demo to show off the internally developed "Infernal" game engine, we were shown an office block play through complete with destructible environment burning walls as we chased that kooky green ghost Slimer. Once on the rooftop, we battled several construction worker ghosts with tool belts and hard hats, relying on our teammates to help us wrangle the tough ones into the waiting traps we kicked out. Ghost catching is almost a mini-game in itself, with players having to wrestle apparitions Bass Fishing style. The team also confirmed the PS3 version of the game will include Sixaxis motion controls for this function, making wrestling a wrist bender. So authentic is the progression from big screen to home console that stars Dan Akroyd and Harold Ramis are lending their voices as well as writing the game's dialogue. Bill Murray, Ernie Hudson, and Annie Potts are reprising their roles, but Sigourney Weaver and Rick Moranis will unfortunately not be featured. The game looks to be incredibly faithfully recreated, and even at this early stage we're cautiously optimistic fans of the film will be able to get their Ghostbusters 3 movie fix from this title.

　　All this hard work had certainly helped the media work up an appetite, and keen to help where possible, the Sierra team ushered the crowds of media to a downtown San Francisco bar that had been decked out in an elaborate Ghostbusters theme. Dark and moody inside, bookshelves were covered in spider webs, while off to the side marshmallows and an open flame let visitors create their own Stay Puft Marshmallow man, complete with melted face. Even some of the drinks behind the bar had been renamed to fit the spooky surroundings. Check out some of the photos from the event here.