I've had it for multiple games. I can't remember most specific games, but two I can remember off the top of my head are Dragon Quest VIII and Muramasa: The Demon Blade.
Basically, I think it comes from when I've been so much in the 'groove' of the game that I feel I don't want it to end. But I've also had it at times when I've just spent so much time on a good game, I feel like I can't quit it because its become a routine to play (although a good routine). I had this for games like Dragon Quest VIII, Suikoden III and recently Zelda: Wind Waker.
But it can also happen when I'm playing a really good game, but its just too short.











