Rogue Ops also has a pretty useful context-sensitive icon system that helps you navigate the game world. When you're looking directly at something that you can interact with--a pipe you can climb, a file cabinet you can search, an unexpecting enemy whose pockets you can pick--you'll see an icon appear that indicates the appropriate action. The icon turns green when you're close enough, and you can then perform the move with a single button press. The icon system generally makes it easier to identify features of the levels' backgrounds that you need to use to progress, although sometimes it can be frustrating when you can't seem to maneuver Nikki into the precise position that will turn the icon green and let you actually do whatever it is you're trying to do.
Rogue Ops makes an effort to be edgy with the buxom, Lara Croft-esque Nikki and fairly liberal use of cursing in the dialogue, but this effort ultimately comes off as a bit hokey.
The mechanics in Rogue Ops look OK on paper, but the game certainly isn't without its problems. For one, the missions are extremely unforgiving, especially when it comes to getting caught by enemies or cameras. Sometimes you'll be noticed by an enemy even when it looks, on your radar, like you're clear of his view. If you're in a mission that doesn't allow you to be caught, this will make you restart over and over ad nauseam until you get it right, which can be maddeningly frustrating. On the flip side, in other missions the stakes for getting caught seem absurdly low. You can often raise an alarm by running into a security guard or tripping an invisible laser without suffering any serious consequences other than having to kill one extra guard, if any show up at all. The enemy AI is also pretty flimsy, as sometimes you'll be engaged in a firefight with a couple of guards while another soldier just down the corridor will still be standing at attention, not even alerted to what's happening nearby. Finally, it can be just plain hard to figure out what to do next in some situations, which means you'll spend a lot of time simply looking around the environment for the next available icon. Exploring for these icons can be difficult, though, when you're evading enemies who have an uncanny knack for noticing your presence.
In terms of presentation, Rogue Ops is a little mixed. The graphics engine seems pretty capable, and even if the characters and environments aren't the best-looking you've ever seen in a game, they get the job done without any grievous flaws. There are a few decent lighting and environmental effects going on, so visually the game makes a mostly better-than-average effort. As you've probably come to expect, the Xbox version is far and away the best-looking and features the cleanest visuals and the highest frame rate. In addition to the superior visuals, the Xbox version has one other ace up its sleeve: It lets you use voice commands, via the Live headset, to switch between equipment. The GameCube version takes a noticeable hit to the frame rate but is actually not too far behind the Xbox in image quality. The PS2 brings up the rear, as it's more aliased (read: jaggy) than the other two, and the frame rate can be a little jerky at times. The sound effects are decent as well, with guns and explosions and the like packing a pretty solid punch. The voice acting in the game, which takes place in cutscenes and radio transmissions during missions, is pretty bad. It manages to convey the storyline, but there's nothing at all memorable about it or, by extension, the characters. Rogue Ops makes an effort to be edgy with the buxom, Lara Croft-esque Nikki and fairly liberal use of cursing in the dialogue, but this effort ultimately comes off as a bit hokey. There really isn't a lot of music in Rogue Ops to speak of, since the game tends to remain pretty silent when you're in the clear. What music's there is serviceable and is used to indicate when you're in flight from enemies, but that's about it.
Rogue Ops is a fairly respectable effort by Bits to reproduce that feeling of being a secretive badass that a good stealth game provides. Unfortunately, its uneven components keep it from cohering in the way that better stealth games have. If you can't get enough stealth action and can overlook Rogue Ops' flaws, you ought to give it a look.