Cloud's hair was originally supposed to be black and slicked back to contrast with Sephiroth's long white hair. The developers also thought it would be a good way to render less polygons on screen. The idea was eventually ditched for his iconic spiky hair. The idea was later used for Angeal, the original wielder of the Buster Sword and Sephiroph's close friend in Crisis Core.

There are large quantities of cut content from the soapland 'Honey Bee Inn'. The content is as follows:

Whilst in the club, Cloud could end up in a bathtub with nine muscular men, peep through keyholes of occupied rooms, have makeup applied, and choose a room to stay in. You could have also encountered Palmer, head of the Shinra company's space program, coming from one of his regular "bath sessions". There was also a waiting room and employee's louge which players could visit and interact with NPCs.

Whilst some of this content was ultimately cut from the game, the unfinished content can be found on the discs of the original Japanese release and can be accessed through file hacks.

The inscription on Jenova's helmet is a reference to the real world, and read:
Made in Hong Kong
All rights reserved 1996
Squer Company Limited

It wasn't until 2005 (When a high-res image emerged) that this was found, 8 years after the game was released.

In the Ghost Square section of the Gold Saucer there is a pumpkin with green eyes in the corner of the room to the left of reception at the inn. Interacting with this pumpkin will cause it to laugh. This laugh is in fact a slightly slower version of the iconic laugh of Kefka Palazzo, the villain from Final Fantasy VI.