Er, yes, I think that's pretty much what I meant; sorry I wasn't so clear. For example, take Metal Gear Solid; A lot of the game is spent going in and out of the Codec screen at critical points in the action to listen to dialogue about what is happening. It's all part of the story, which has in turn become part of the gameplay, and when you die and have to restart, you often have no choice but to go into the Codec screen again, only to mash X to skip the dialogue. I think that's what I was getting at, anyway!
speaking of revealing the plot in a game, if you haven't tried a thief game (preferably not the third) you should czech it out
I'm pretty sure that this was done in Superman Returns. You were invincible, but the city had a health meter.
that is silly