In a 1991 commentary with the game's composer Nobuo Uematsu published in the FFIV Minimum Album Liner Notes, he stated that the unreleased track "The Origin" was the first song he composed for the game, and described the song as setting the tone for the rest of the pieces that came after. He also stated that it was originally intended to be the opening introduction theme, but "Red Wings" was chosen instead.

In a 1991 commentary with the game's composer Nobuo Uematsu published in the FFIV Minimum Album Liner Notes, he stated that in early plans for the game, the team wanted to use the unreleased track "Rosa o Sukue! (Save Rosa!)" aka "Restless Moments" for a scene where you had to save Rosa within a time limit or a game over would occur; this scene would appear in the final game in the Tower of Zot without this song.

In a 1991 commentary with the game's composer Nobuo Uematsu published in the FFIV Minimum Album Liner Notes, he stated that the unreleased track "The Sea of Silence" was planned for the Moon overworld map, but the scenery didn't exactly match so it got scrapped, much to Uematsu's dismay as he was fond of the song.

If the player equips the Black Sword weapon and triggers its ability to kill certain enemies in one hit, a text box appears saying the apparent non-sequitur "Swoon!" In reality, this is a mistranslation: in the Japanese script, the weapon is known as the Death Bringer, and the text generated by its insta-kill effect roughly reads "Fell into an unable-to-fight state!" As "swooning" can refer to fainting or losing consciousness, the term's esoteric use here was likely the result of attempting to find a suitable descriptor that would fit within the game's character limits.