While in the snowmobile, hold X and repeatedly press Circle until a card mini-game begins. The object is to match the images.

Successfully complete the indicated task to unlock the corresponding Seal:

Northwest Seal: Break four seals. The fifth one will be the Boss.

Northeast Seal: Break eight seals. The ninth one will be the Boss.

South Seal: Break twelve seals. The thirteenth one will be the Boss.

Use the following information to get the keyword or hint of the indicated stage:

Have Mustadio in Chapter 4. After Bervenia, go to the mining town of Gollund. At the tavern, read the "Rash of Thefts" rumor. Go to the merchant city of Dorter. At the tavern, read the "A Call for Guards" rumor. When you leave the city, a battle will start. Win the battle with Balthier's help, and he will join you.

Have Mustadio in Chapter 4. Go to Goug, and read the rumor at Gollund. Go to Lesalia, and invite Beowulf to Gollund. He will join your group after a series of battles.

Have Mustadio in Chapter 4. Successfully complete all ten levels of Midlight's Deep, and The Byblos will join your group.

Successfully complete the indicated task to unlock the corresponding option in the "Extra" menu:

Art Gallery: Successfully complete the game. This option allows all unlocked game art to be viewed.

Bestiary: Successfully complete the game. This option displays information about each type of monster you have defeated.

Music Player: Successfully complete the game. This option allows all songs from the game to be replayed.

Time Chamber: Successfully complete the Labyrinth Of Time. This options allows you to replay any completed Floor from the Labyrinth Of Time.

Successfully complete the indicated task to unlock more entries in the Art Gallery menu:

Successfully complete the indicated task in the North American version of the game to unlock the corresponding mode in Story mode:

Distant Glory (Hero mode): Successfully complete Shade Impulse mode and five characters' Destiny Odyssey.
Distant Glory (Villain mode): Successfully complete Shade Impulse mode and all characters' Destiny Odyssey.
Inward Chaos: Successfully complete Shade Impulse mode and all characters' Destiny Odyssey.
Shade Impulse: Successfully complete a character's Destiny Odyssey.

Successfully complete the indicated task in the Japanese version of the game to unlock the corresponding mode in Story mode:

Distant Glory (Hero mode): Successfully complete Shade Impulse mode.
Distant Glory (Villain mode): Successfully complete Shade Impulse mode.
Inward Chaos: Successfully complete Shade Impulse mode.
Shade Impulse: Successfully complete all the Heroes' stories.

When you meet Hojo in the laboratory, talk to him once, then go to the glass pod near him and enter it. This is the pod in which Red XIII was trapped in Final Fantasy 7. Once you enter, Hojo will lock you up and ask a few questions. Based on your answers, you will be given a stat boost by Hojo.

Minerva is the goddess of the planet that Genesis sees after his last defeat. She is also an optional Boss that you can fight. She is extremely difficult to defeat. She has 1,000,000 HP and can kill you with one hit if you are not careful. She is under the final "Great Cavern of Wonders" mission. You must have at least 70,000 HP because she has an attack that does damage of at least around 60,000 to 68,000 if you have Barrier and are guarding. You can steal 99 Phoenix Downs from her though. You can use these for unlimited gil and Soldier Points. Steal the Phoenix Downs, wait for her to attack (because you will die), then sell the Phoenix Downs. They are worth a lot of gil. For the Soldier Points, use the gil you got from selling them to buy Materia, then convert it to Soldier Points. Note: Minerva can eliminate Raise status with one of her attacks.