Materia caves
- HP <-> MP: Found in the cave north of North Corel (the ropeway station). You must have a river chocobo to reach it.
- Quadra Magic: Found on an island to the east of Chocobo Billy's Farm. You must have a black chocobo to reach it.
- Mime: Found on Wutai Island, on the eastern edge south of Wutai's northern peninsula. You must have a mountain chocobo to reach it.
- Knights of the Round: Found on Circle Island, an uncharted island in the northeast part of the world map. You must have a gold chocobo to reach it.
Turtle's Paradise flyers
Throughout the game, you will find posters that advertise Turtle's Paradise, the restaurant in Wutai.
- Sector 5 slums - In the top floor of one of the houses.
- Shin-Ra headquarters, first floor - on the bulletin board. (You have to read this on either time you're visiting the building, or you'll miss it for good.)
- Gold Saucer - Ghost Square shop.
- Cosmo Canyon - Weapon shop.
- Cosmo Canyon - Shildra Inn.
- Yuffie's House in Wutai - In the cellar. (You need to read this when Yuffie takes you in there, or you'll miss it for good.)
If you find them all, you can collect the prize from the barkeeper in Turtle's Paradise.
Ribbons
Ribbons are the most handy accessory ever devised by a FF designer. They're also pretty rare. Here are some places to get Ribbons, though:
- A chest in Temple of the Ancients.
- Tonberrys can be morphed into extra Ribbons.
- There's a pretty well-hidden cave in Gaea's Cliff.
- Special Battle in Gold Saucer, though they are reportedly pretty rare.
Bone Village
The Key to Sector 5 can be found by looking for normal treasure, and it's placed right below (towards the bottom edge of the screen) the tip of the fighter plane.
Lucrecia's Waterfall
You need a colored chocobo or a submarine to reach the round lake on the southern half of the western continent. There's a cave behind the waterfall.
Once you enter with Vincent in your party, you get a cutscene that explains a lot about Vincent's background.
Return to the cave after about one hour or more of play time. Doing so, you'll get Vincent's level 4 Limit Break manual (Chaos), and Vincent's ultimate weapon (Death Penalty).
Sunken Gelnika
A big airplane has sunk in front of Costa del Sol. Use the submarine to reach it.
Inside, there's first a save point and a chest. In the second room, you have to fight the Turks. (Should explain here how to beat them, but heck, KotR kills them dead anyway.)
The third room is the cargo room. Behind the pipes, you'll find Hades materia. In the chests, you find Conformer, Yuffie's ultimate weapon, Highwind, Cid's lv4 limit break manual, and... other stuff?