Overview

A storyboard in M.U.G.E.N is composed of a combination of animation, text, music and/or sound, in the form of a cutscene. Storyboards can be used to make cutscenes such as the game introduction, character endings, credits and more.

Terminology

cutscene
What you actually see (and hear).
event

What triggers a cutscene to be played back.
storyboard

The .def file that defines what you see during a cutscene.
For example, during the ending event, the ending cutscene will be played back. The ending cutscene uses the ending.def storyboard.