Ahh yes, NOLF, excellent games the both of them, but for different reasons.
NOLF was just flat out hillarious, a big smile from start to finish, and quite inovative for its time, the only downside to the game was when missions required stealth, as its sneaking system was rather crude.
NOLF2 took the game mechanics and polished them good and propper, stealth was allways the way to go and it was fun! but unfortunately the game was a bit short, and some of its gags where not quite as funny as in the first one (still though, some truely hillarious moments in this one too!).
I would love to see more NOLF, but sadly, not only is it unlikely to happen, but it would probably also be a Console exclusive title if made today (like Uncharted was, made by the same company, and also, it was not funny).