Originally Posted by azraelck 
Out of curiosity, Thrasher, how many games have you played with a dynamic time limit? Not just "stand around and protect the crate for 5 mins" or have a flat time limit to finish a level, but one where the more time you take changes what you see later on, as events pass you by?
I'll be honest, I can't recall one. I wouldn't want to have to write for one either; you would have a ton of work making it happen and not seem arbitrary.
I remember one Infocom game, Suspected I think or something, where you are a detective and had to figure out some murder, but things happened in the game and you had to be there to see it or you'd miss it. Can't say I liked that, almost required you to play several times just so you knew where to be at the proper times to get the information needed to correctly solve the case.