One common aspect of modern Japanese narrative-centric games and visual novels that we tend not to see quite so much in contemporary Western titles is the matter of multiple endings.
In some cases — visual novels being the prime example — seeing another ending is a relatively straightforward matter of picking different choices throughout the course of the story. In some cases, there will be a simple branching point towards the end that determines which ending you get; in other, more complex offerings, there will be completely divergent narrative paths down which to proceed.
In other cases — primarily more complex games such as role-playing games — seeing different endings is often dependent on a variety of other factors, some of which may not necessarily be entirely obvious at first glance, and some of which may be all but impossible to figure out yourself without the help of a guide.
Multiple endings provide replayability, sure, but are they a good thing?