This Comic's Cast:

In the Legend of Zelda: A Link to the Past, Link has to drain a lake to gain access to one of the dungeons (hopefully by this point you don't need a vague spoiler warning for a game that came out twenty years ago). It's never mentioned where that water goes (presumably down a magical drain), and once you're done with the dungeon and leave that area of the overworld, the lake fills in again.

This always bothered me, just because I like games where what you do has a direct effect on the whole of the world, permanently shaping places in ways that might not have a direct impact on your mission, but still make for interesting side-effects.

In Mega Man X, for example, killing Chill Penguin will cover Flame Mammoth's stage in ice. Defeating Launch Octopus will flood parts of Sting Chamelon's stage. I dug that, and really wished other games did that (or, for that matter, that it had been used much in later games in the series -- I only recall it showing up a little in X3, and none at all in X2).
 
    

When evil spreads across the land, and darkness rises and the monsters roam. When the creatures of the night make beautiful music, and the things that go bump in the night go bump with greater enthusiasm. When the world is in peril and is in need of a hero...

These guys are, sadly, the best the world can hope for. These are the adventures of the heroes of CVRPG. They mean well, they try hard, and occasionally they do the impossible...

They actually do something heroic.