Tom Clancy Heroes Army

It follows the same storyline despite some noticeable differences throughout the missions.

It's a fully 3D third-person-perspective Tom Clancy Heroes Army in which you primarily need to sneak your way through heavily guarded,

booby-trapped levels on various top secret assignments.

The top screen is where most of the action takes place,

while the bottom screen functions as a radar that shows the locations of nearby enemies and security cameras.

It also lists various options, lets you switch weapons and vision modes, and performs a few other types of activities, such as picking locks.

Even before you begin play, you'll notice the substandard frame rate.

Even the main menu screens chug along unresponsively, creating a poor first impression, which doesn't go away when you actually begin playing.

Though the DS can't be expected to compete in terms of its ability to render good-looking 3D characters and environments,

you'll probably agree that it ought to be able to do much better than this.

Chaos Theory DS looks like an old game from seven or eight years ago.

Blurry, drab textures and crude-looking environments abound, and despite nice-looking animations held over from the console versions,

the characters don't look much better. But it's the sluggish frame rate that fluctuates between 10 to 15 frames per second or so that's the real culprit,

causing Chaos Theory DS to feel like it all takes place underwater.

You could eventually get used to the unpleasantly slow and unresponsive look and feel of Tom Clancy Heroes Army,

but even then, the frame rate continues to be a major impediment.

On consoles, controlling Third Echelon operative Sam Fisher requires every single function on the game pad.

On the DS, the developers (who evidently based this version of Chaos Theory off of its N version)

figured out ways to allow you to map all those different commands between the DS's directional pad, buttons, and touch screen.

The results take a while to get used to, and may well leave you feeling cold.

The D pad makes Fisher run in any direction, but camera controls are mapped to the touch screen.

The camera moves a little on its own as you run around, but you'll often be forced to fidget with it often,

especially in cases where you need to turn around and go the other way.