Prey came out on the 360 during the system's first run of decent games. It was a pretty good effort and the combination of ancient Native American folklore and alien invasion made for an enjoyable and exciting game.

Prey Invasion takes for granted that players have already played the first game as none of the clever build-up or plot devices are found anywhere. Instead, you jump right in to the game; aliens are everywhere and you are running around with your mechanic's wrench, beating the crap out of anything that moves.

I will, however, praise the dev team for coming up with an actual first-person shooter that manages to use the iPod touch's touch screen by placing two virtual thumbsticks on the lower corners of the screen. It take a little bit of a learning curve to get the nuances of the gameplay, but 15 minutes in you should be moving and fighting effectively. The only thing that I continually struggled with is how to shoot. And that is done by tapping the screen, well, tapping your enemy when they are in the general area of your weapon's crosshair. You can hit the bad guys when they are near it, but if they are on the further edges of the screen, forget it. And in all fairness that is Ok. But all you FPS fans out there will understand how difficult it can be to maneuver away from an oncoming enemy while shooting when you can't do both simultaneously.

The visuals are more then adequate. I was surprised at how well the game's ethereal powers (when Tommy goes to the spirit world) were displayed with generous aplomb. The screen goes to a different hue and the spirit creatures flow nicely. It's honestly the only part of the game that remains true to the original version. Both in the parts where Tommy is injured mortally and has to fight his way back to the living and when he needs to leave his body to complete tasks.

There is even some voice work that surprisingly seems in-place. Tommy talks to himself and compliments his abilities throughout the game, there is some repetition, but nothing that becomes annoying or overused. Weapons' fire and monster noises are clearly restrained and underpowered. It reminded me of the original Doom when viewed with current expectations. Yes, it misses the mark.

Gameplay: 7.4
I really thought the virtual thumbsticks were a great addition and can be utilized in an effective manner. There is some problems with the shooting but there are only rare occasions where you have a lot of enemies on the screen at once.

Graphics: 7.9
I was pleasantly surprised with how well the levels looked and how everything came together. The dev team did their homework and kept the same visual flair of the game.

Sound: 5.5
It has some passable voice work for Tommy, but the sound effects and actions sounds are way underpowered.

Difficulty: Medium

Concept: 7.0
I wanted to really beat this game up because I just couldn't see how a FPS would work on a mobile device, but I can't, the game was given too good a treatment.

Overall: 7.0
The game passes muster because of its innovative control scheme and faithfulness to the source material. It has its faults, but it is still a game worthy of purchase.