Black Jack mini-game
Successfully complete the game. Once the credits finish and "The End" screen appears, press R2, L1, R2, R2, Up, X, Right, Circle, Down, Triangle, L2, R1, R2, L1, Square(2). If you entered the code correctly, you will hear a sound. Press Start to begin playing the Black Jack mini-game.
Jump rope mini-game
Have Vivi approach the girls jumping rope near the ticket both in Alexandria. Talk to them and they will let Vivi join them. Press X when the symbol appears over Vivi's head to jump. Keep jumping successfully to get Gil, rare cards, and other items.
Other endings
End the game with the "Zeus Hammer" and/or the "Save The Queen" in your inventory to get additional endings.
Infinite MP
Have Amarant in your party and make sure he has learned the Chakra skill. Also, the minimum MP needed for this trick to work is 4 MP. Enter a battle and have Amarant cast Chakra on himself. For 4 MP, he will restore MP equivalent to about 20% of his maximum MP. Continually cast it until you have reached your maximum MP. You can also do this to all other characters in the party as well.
Easy AP
Walk around in the darkness for awhile in the field and forests around the town that has the auction house and lady who collects the zodiac signs. You will encounter a ghost. Give it some ore and you will win the battle, resulting in 10 AP.
Easy experience
Use Quina's level 5 Death spell against the level 60 Grand Dragons on the outside of Gizamalike's Grotto for around 8,800 experience per person. Equip the quick level gain support ability (level up) for even more. Also, remember to take Coral Rings to protect against the Dragon's Thundaga spell.
Catching frogs
Frogs Items
2 Ore
5 Ether
9 Silk Rode
15 Elixir
23 Silver Fork
33 Bistro Fork
45 Battle Boots
99 Battle Master Quale to receive Gastro Fork
Ragtime Mouse
If you find the Ragtime Mouse (it resides in wooded areas) and properly answer its questions, you can earn some extra Gil. Answer by choosing either "True" or "False". The mouse will then give you Gil in return for each correct answer, as well as keep track of your percentages. Some locations the Ragtime Mouse have been known to inhabit include Gunitas Basin, Lindblum Plateau, Bentini Heights, Lucid Plains, Pualei Plains, and Alexandria Plateau.
The rewards for correct answers in a row are:
Question 1: 1,000 Gil
Question 2: 1,000 Gil
Question 3: 1,000 Gil
Question 4: 2,000 Gil
Question 5: 2,000 Gil
Question 6: 3,000 Gil
Question 7: 3,000 Gil
Question 8: 4,000 Gil
Question 9: 4,000 Gil
Questions 10: 5,000 Gil
Some questions the Ragtime Mouse have been known to ask include:
The 15th Lindblum War started in 1600? (False)
Chocobo Forest is located between Lindblum and South Gate? (False)
The Theather Ship Prima Vista was built in Artania Shipyards? (False)
"I Want to Be Your Canary" was written by Lord Afon? (False)
Lindblum Castle is larger than Alexandria Castle? (True)
Lindblum's air cabs operate around the clock? (True)
Some Mus are friendly and don't attack? (True)
Berkmea Cable Cars have been running for eight years? (True)
Fossil Roo is a tunnel that connects Treno and Alexandria? (False)
Theater Ship Prima Vista uses Mist as its source of energy? (True)
