The early levels require this pixel perfect timing that I've never been able to achieve to get past them. No idea what the later levels hold. There is a "narrative" mode in which you can not fail. Buuuuut this seems to miss the point of the game since, so far as I can tell, there is no actual story to follow. Spy sneaks to next door avoiding guard and traps, is not a story. It's an arcade plot... Which I like to see in modern games but not ones that are impossible to win. Soooo...
Wish I could recommend this game. But I can't. (Insert spy joke here.)