Momentum is a pretty great thing, generally. Roller coasters wouldn't be fun without momentum. But when you're a little flying spy cube attempting to infiltrate an evil virus designing company (motto: "Selling country-destroying microbes to terrorists is a sustainable business model for sure!"), momentum isn't on your side. In Filipe Sheepwolf's Spy, not only do you need to figure out how to solve puzzles to manipulate the enemy territory, you've got to do it without attracting any attention, and banging into walls or sailing in front of a security camera tends to hinder that. Newton, Newton, what hast thou donest.
A brief tutorial level will teach you the basics. For the most part, you're using the arrow keys to guide your plucky little cube through ventilation ducts and under tables. Your chief weapons are your screwdriver (number key 1) and your visual sensors (number 2). Sometimes you'll pick up things like keys, and if you have them, they'll be controlled by number key 3. You can hit number key 4 at any time to adjust the options such as the quality or sound. You will also need to use the mouse occasionally, to enter in codes or to zoom in on a list of codes. Lastly, the [enter] key is used to finish reading information or instructions, and is a quick way to restart when you're caught. That's when, not if.
Our elite game seeking team (we're kind of like the cube in this game, actually, we rappel into developer's sites and do cartwheels through lasers and stuff to get to the new releases) wants to let you know that for some reason, a number of us had difficulty playing this game on Firefox, even the latest versions. If you're experiencing problems with stuttering and lag, and you're using Firefox, you might want to try Chrome, Safari, or IE instead.
Analysis: If the popularity of any game that requires you sneak things up International Person of Mystery style is any indication, inside each and every one of us is a super spy screaming to break free and climb all over things with suction cups attached to our hands and feet. There's something weirdly fun about sneaking around where you're not supposed to be, getting in and out before anyone knows you're there, and Spy perfectly captures that sensation. It's similar in concept to Shadow Game, but much more fleshed out, and it's the addition of all those wonderful spy gadgets we all secretly long for that really makes the game stand out, puttering around sleeping guards and surveillance cameras without a sound. It's more than enough to make you want to rappel down from the ceiling in a black bodysuit just to make coffee every morning.
You really don't want to have lag for this game because the game pretty much jumps straight from "tutorial level" of difficulty to "end stage". With the noise sensors, you have a little (a VERY little) amount of leeway, but it's so easy to bang into things that it isn't much comfort, and at some points, even scraping the side of an object creates noise. For visual sensors, get caught once and it's start over time.
Most of the game's length is from its difficulty. If you are some kind of elite stealth genius, you might be able to whip through the game's four non-tutorial levels in a few minutes of perfect performance. If you are like me, it will probably take you hours, with frequent breaks for homemade brownies and crying. Those of you in between should expect a decent amount of both length and challenge. The game might have been improved by adding a few levels between the tutorial and the first level that gradually ramped up in difficulty, but after I got over the initial shock of "you die, you die, you DIE" and restocked my chocolate reserves, even I was able to play through the game and felt very proud of myself when I did. For fans of the genre it should be even more enjoyable, and the cinematics are quite cool, even if the plot is a little hokey. Elite players, get ready to mock us lesser mortals. The rest of you, grab your favorite sugary comestible and try your best.