In spying games, you move on platforms and one of the goals is to be discreet. You must move in the dark, without a sound, and never through the beams of light.
Sometimes, your mission is to collect data or to combine the discretion with agility since spying games are platforms games.
It also happens that in spying games, the slightest misstep is fatal. Indeed, as soon as an enemy spots a suspicious activity, it can attack your character and kill him.
When you fail, you generally have to start a level from the beginning.
In spying games, you can also kill ennemies or hack computers.