The Video Game Critic

Right now I'm playing through Final Fantasy 13-2 pretty much just so I can play Lightning Return: Final Fantasy 13.  The thing that sounds best about that game is that it has a week long time limit, like how Majora's Mask has a three day limit.  If you do the right stuff you can extend it up to 13 total days.  I think this is a really cool feature, and makes the games seem a lot more urgent and intense.  What do you guys think of it, and are there any other games that use this feature?

The Dead Rising series uses this type of feature, giving you 72 hours(14 hours in real time) to finish the game, it's especially when you're trying to complete all the missions and rescue all the survivors.

Sega Saturn's "D" is played in real time.   

In a different way, there are games like Sega CD's Double Switch where its not beating a clock, but things are happening all at once in real time.   

Amazing SPiderman vs. Kingpin (SCD) is also played in real time. That one's pretty fun.