Banana flavoured candy doesn't really taste like banana. Or anything artificially banana flavoured for that matter.
Except they actually do. It's the banana that doesn't taste real. Or at least what was used to be the real banana until 1950s.
Before that, the cultivar called Gros Michel was the main type of banana grown and sold. But during fifties it was almost completely wiped out by the fungus based Panama plague. But not before it had already found it's way to candies in the form of artificial flavour that is still used today in candies.