Aliens are invading, and it's your job to stop them! Well, OK, I'll be honest. The Galactic Plague is a version of Galaga, itself a version of Space Invaders in which the aliens could swoop down towards you. The set-up is familiar: A wave of aliens slowly descending while moving horizontally at the top of the screen, and you at the bottom, firing up at them. At any time they may attempt to dive-bomb your ship, looping back up to the top of the screen if they miss.

Games made to cash-in on a profitable film are often difficult to classify, featuring a mish-mash of different play styles. Ghostbusters is no different. First and foremost, you have to manage the Ghostbusters' finance, paying for traps and upgrades to your car with the fees you get from busting. Then it's off to an overhead view of the city, where you can find places under attack. Also on the map are an ever-converging set of ghosts. Should they meet, they will wreak havoc on the city. Busting consists of controlling two characters viewed from side-on, trying to coordinate the proton beams (don't cross them!) and set the trap to catch the ghosts. Undoubtably the best thing about this game is the karaoke-style rendition of the theme tune when it starts.

The PS2 rhythm action game compacted to PSP, with the addition of two new songs for the added Duet mode.

A very unique game indeed, and very difficult to boot. Your task is to destroy all ten of the reactors dotted around an isometrically-viewed island. Within an hour. To help you get around the place, you ride a combination motorbike and hang-glider. To get airborne in order to bomb the reactors, you have to ride down a two-square-deep hill to get the speed to take off. Unfortunately, while in the air you will be prone to attack from the laser turrets that guard the reactors. There is no way to cure the damage that they deal, the time is ever ticking, and there are never enough hills around when you need one.

Six levels, spread over three cities, await you in this violent and controversial arcade racer. Each level has a simple goal: to make a lot of cash. Exactly how this is accomplished is up to you, but it will involve breaking a few laws. Carjackings, hit-and-run "accidents" with the pedestrians, and homicidal "kill frenzies" with sub-machine guns will all help boost your cash, and a visit to one of the payphones dotted around the city will provide you with a high-profit mission. Viewed from overhead, the emphasis is on speed as the missions often feature tight time limits and the police will not tolerate your actions; frantic chases through the traffic and down the sidestreets are never far away.

Welcome to Liberty City! Double-crossed by the Columbians during a bank raid, you were left for dead until the police found you. Convicted and sentenced, you were on your way to prison when the escort was hijacked and you broke free. Now you have your liberty and an entire living city in which to enjoy it. So what are you going to do?

The Grand Theft Auto series is expanded into a fully 3D and coherent environment. No longer made up of distinct levels, the city is divided into three large districts which "open up" as you progress, and the whole thing flows to a sped-up day/night cycle. The missions which you run for gang heads are in a much more linear and scripted style than in previous outings, with only one or two open to you at any one time. Ultimately, however, it is up to you what you do and how you do it - as long as it's illegal. New opportunities include drive-by shootings, sniping from rooftops, or stealing a public service vehicle and moonlighting as a taxi driver or vigilante cop.

Vice City, circa 1980. By day, bikini-clad rollerbladers weave through the crowds of pastel-suited yuppies lining the beachfront. By night, the rich and famous cruise in their sports cars through the neon-flooded streets. There's a lot of money out there, if you know where to look, and Tommy Vercetti knows where to look. Fresh out of prison, he was sent to Vice by his boss Sonny to close a major drugs deal, only to be set up. Now he has lost the money and the gear, and he's in major trouble. The only solution is to take control, and take over the city for himself.

So you, as Tommy, start off on the streets of Vice with little more than the shirt on your back. Fortunately, in true GTA style, anything else you want is there for the taking. As you pound the fully 3D streets (or preferably, steal someone's car and drive instead) you'll make new friends and enemies in the underground. These open up nonlinear missions featuring plenty of high-speed chases, police shootouts, assassinations, and general sociopathy. Using an expanded version of the GTA3 engine, Vice City features a much larger environment with a rich selection of vehicles (including bikes and helicopters) and enough weaponry to put the army to shame.

You play a criminal, striving to get noticed and make enough money to progress to the next of the three areas of city. Like its predecessor, the game is viewed from overhead, but this sequel introduces gang warfare. Each zone is populated by three gangs, as well as scores of innocent pedestrians and drivers, and increasingly powerful police forces. Quick cash and transportation can be gathered via carjacking or generally running amok, but the big money lies in playing the gangs. Missions can be attempted for each, and respect earned and lost by your actions. Whatever paths you take, there will inevitably be police inteference; expect citywide car chases, roadblocks, SWAT teams and even the army to get involved.