The intro to Sephiroth's theme, "One-Winged Angel", was inspired by the intro to the song "Purple Haze" by the Jimi Hendrix Experience.

Due to both Vincent and Yuffie being optional recruits, they do not appear in the game's ending cutscene.

In the 2012 PC re-release, using a Save Crystal in a specific screen of the Northern Cave will display the area name in the menu and save file as "Secret Cow Level". This is a reference to the Secret Cow Level in Diablo II.

The last phase of the final boss fight pits Cloud in a one-on-one duel against Sephiroth, who will always go down in a single hit, regardless of whether Cloud attacks him or steals from him. This is facilitated by giving Sephiroth only 1 HP, which can be seen in-game with help from a GameShark code.

The character Zack Fair was created late into development. He was made up along the way as Kazushige Nojima was building up the mysteries surrounding Cloud (most importantly, who he was and who he based his fake cocky personality on). Before Zack was created, Aerith was to see her first love in Cloud, though who that person would be was not yet decided until later, but there were plans to make this person Sephiroth. Eventually, Zack was placed to serve as both Aerith's first love and to solve the mysteries surrounding Cloud. When he was finally developed, Nojima asked the staff in charge of the event scenes to add foreshadowing to Cloud's true persona and to Zack himself. Zack was also the last character to be drawn by Tetsuya Nomura.

The number 7 is very prevalent in the game.

• AVALANCHE resides in Sector 7 of Midgar.
• Tifa's bar is called 7th Heaven.
• At the start of the game, seven people are either living or staying at the 7th Heaven -- Cloud, Barret, Tifa, Marlene, Biggs, Wedge, and Jessie.
• The books in the Shinra Mansion library shelves form the letters "VII".
• The red plane in Costa Del Sol harbor has "VII" painted on the side.
• The Gold Saucer has seven areas of attractions.
• The Ancient Forest has seven treasures.
• The Turtle's Paradise awards seven items for completing the flyer-hunt sidequest.
• Aeris and Ifalna were held captive by Hojo for seven years.
• It's been seven years since Cloud left Nibelheim to join SOLDIER.
• Tifa spends seven days unconscious before waking up after the Weapons awake.
• Red XIII tells the party that Meteor will reach the Planet in seven days.
• Cloud levels up to level 7 in the first battle.
• If a unit's HP hits 7,777 during battle they enter All Lucky 7s status.
• The "lucky" handicap reel on the Battle Square is called Lucky 7.
• Most characters have seven different Limit Breaks. The exceptions are Cait Sith, who has two but with various different outcomes, and Vincent, who has four, but each form has two special attacks. This makes for seven characters who have seven Limit Breaks.
• There are nine main playable characters, but only seven are mandatory.

There is a bit of unused dialogue found in the Final Fantasy VII game data that would have taken place outside the Shinra Headquarters, before the party head in for the first time, and in the elevator, if the player entered the building through the main entrance. Outside the building, Barret would suggest that Cloud knows the place well, to which Cloud would have answered it to be his first time there. Barret would then have said he has been at the headquarters before, back when he still had both his hands. The elevator scene is similar, with Cloud saying he's never been to the place before and asking if Barret is familiar with it, which would have prompted the same response from Barret. These bits were cut off the final game and nothing in the finished version suggests Barret would have ever visited the Shinra Headquarters before.

Barret was the first consistently dark-skinned playable character in the Final Fantasy series as Leo Cristophe from Final Fantasy VI was light-skinned in his sprite form.

Final Fantasy VII's original Spanish translation is considered to be one of the worst of all time, even being called the "Spanish Zero Wing" by some (the infamous "All Your Base are belong to us" videogame).

There are some minor mistakes, such as mistaking "Well" for "Rueda" (that means Wheel) or "Hurry" for "Hurra" (which means "Hooray") but there are others which completely destroy the dialogue. The most remarkable examples are:

-Every time that someone talks about Aerith, Yuffie, Tifa or any other female character from the game, they will be referred as if they were male, as some words in English ("the", "a", almost every adjective... etc.) are used for both males and females, but not in Spanish where most of them vary depending on the gender ("un/una", "el/la"...).

-The word "You" in English is both singular and plural, but in Spanish there are two words for that, "Tú" for singular, and "Vosotros" for plural. The word "Vosotros" is never used in the game.

-The word "Miss" is translated as "Merma" (literally "Decreases").

-One of the worst translated parts is the Gold Saucer, with sentences that don't make any sense, such as "Allévoy" (something like "Hericome" instead of "Allá voy", which means "Here I come") or "¿Quién participaré??" (literally "Who will I participate?").

-The word "Party" is used in every wrong way possible. Sometimes it says "Haz un partido de tres", which means "Make a political party of three", but the most known mistake is in Kalm's Inn, where the inn's owner says "Su fiesta le espera en el piso de arriba" ("fiesta" here meaning cheerful celebration).

When returning to the Sector 5 Church, two different images of Aeris may be seen. One appears for a split second in the center of screen before disappearing, while in the other Aeris is seen tending the flowers before Cloud moves closer. It has been speculated this is meant to be her "ghost".

During the cutscene Spoiler:in which he kills Aeris, Sephiroth's hands are bare as he descends from the ceiling. However, during the rest of the scene, he has black gloves on.

Aeris, after being brought back via a cheat device, has dialogue in discs 2 and 3. This seems to imply that either Spoiler:she was not meant to die at the end of disc 1 or that Spoiler:she was intended to be revived later in the game.

After you find Cloud in the hospital after he falls in the Lifestream, he will mumble incoherent things when you speak to him. One of the things he mumbles is "zeno... gias..." This is a translation error and a reference to the game Xenogears. In the PC port of Final Fantasy VII, the spelling is corrected to "Xeno... gears".

Cloud also says "A billion mirror fragments.... small.... light..." which is a reference to the vocal song of Xenogears, Small Two of Pieces. One of the lines to the song is "Broken mirror, a million shades of light".

According to the Final Fantasy VII Ultimania Omega, earlier drafts of the game's scenario involved three characters known as the '3 Saints'. Not much is known about their original role in the story, other than they were kidnapped by Sephiroth, and that Red XIII knew more about them than the rest of your party. The only Saint mentioned by name was called Gandalf, who was captured by Hojo and "practically crippled" in a Shinra laboratory.

While at the Honeybee Inn, if you look into one of the occupied rooms through a key-hole, you can see a mini Cait Sith inside a bath tub jumping around.

Red XIII had a subplot that was cut from the game as the plot developed in a different direction. Originally there were to be two Red XIII clones created by Hojo called Cobalt XIV and Indigo XV. The player would have to fight all three of the "Red XIIIs" and figure out which was the real one, with the three swapping places periodically. Defeating the real Red XIII by accident meant the player had to fight the following boss battle with Hojo with only two party members. Cobalt and Indigo would return in the final dungeon of the game, turned into cyborgs and determined to prove they were superior to the real Red XIII.

There is a hidden "Red Man" in the Corel Prison. The model is hidden from view in normal gameplay. There are no other models like this in the game, and it is thought to be a signature from one of the designers.

During the scene where Sister Ray is about to fire the Diamond Weapon, there is a voice that comes through the intercom. The voice actor is not credited in the credits, and the person who spoke through it is unknown.

Although a voice was heard, and ultimately makes Final Fantasy VII the first Final Fantasy game with a voice actor.

During development, series creator Hironobu Sakaguchi's mother passed away. At the time, Sakaguchi wanted to craft a story that would show just because somebody has passed on, it doesn't mean that they are forever lost. He also wanted to present a realistic death, rather than a Hollywood sacrificial end. These two desires resulted in the concept of the Lifestream and Aeris' iconic death. The characters continuing to go on, attempting to save the world, after Aeris' death is a reflection of his own feelings coping with his mother's tragic death.

Many people still don't know how Cloud's legendary "Buster Sword" sticks to his back, but if you look at his initial design, it shows there is a magnet held by his pant straps that keeps his sword in place.