Ambiguity is one of those things that most video games either totally ignore or wield like a baseball bat. You either have characters that talk too much or ones that never talk at all. The whole appeal of not having everything spelled out in absolute detail is that there is room for imagination. There is room for additional details about the story or character that are inconsequential but the person can add themselves.
Unfortunately, like its uncertain nature, there isn't really a set of guidelines or rules when it comes to ambiguity or abstractions. It is, by its very nature, up to personal tastes. So I figured I'd instead just talk about one particular kind of ambiguity that's going to the wayside lately.
The pleasures of 8-bit art and its symbolic nature.