[DrStalker]

I remember in one of the Kings Quests games you could throw either a shoe or a stick at a dog chasing a bird; both awarded you points, but one led to not being able to complete the game.

In addition at the very end the bad guy casts a spell at you, and the bird flies into the way and you don't die... if you didn't save that bird 4 hours earlier you have no way to possibly know that is why you are doomed to failure in the final fight.

It felt like shitty game design at the time, and by today's standards it would be completely unacceptable to most players.

[Razengan]

I think those kind of stretched consequences could work well with a time-travel gimmick in a modern game.