Final Fantasy III was the second of two Final Fantasy NES games to be released only in Japan, leading to the fourth game in the series being released to the rest of the world as Final Fantasy II. The game brings back the experience point system from the first game while changing up the character jobs formula by allowing the player to change a character's class mid-game as well as acquire new and advanced classes.
In this movie, the author, AmaizumiUni, abuses a bug that causes character inventory to overflow, corrupting the game's memory and triggering the credits early.
WARNING: There are flashing lights during every enemy encounter which may cause epileptic seizures to those affected.