Unlockable Prologue tech

A visual novel with this tag has a prologue that is unlockable after meeting certain conditions (e.g. achieving all endings). A [URL=https://en.wikipedia.org/wiki/Prologue]prologue[/URL] is an opening to a story that establishes the context and gives background details, often some earlier story that ties into the main one, and other miscellaneous information.

No games carry this tag yet.