Final Fantasy Tactics was the first FF title that was not an RPG, although it didn't leave the genre totally. Published for the original Playstation console in 1997, Final Fantasy Tactics is a tactical role-playing game, that was just ported to the GameBoy Advance since it was so well-received when it first surfaced. Featuring a huge world map, FFTA will offer you many hours of fun quest-solving and treasure-hunting. You control four children that get transported from their town into a parallel universe called Ivalice. Also the player will have a lot of freedom while assembling clans of characters, being able to control their actions both in the game and battle. Here's what you can unlock while playing FFTA:

Unlockables

Expert Missions
To unlock Expert Missions, beat the game once and save. When you start again, you will have a star next to your name.

Judge Missions Side-Quest
To be able to do the judge missions, you must beat all 300 standard missions and head over to Bervenia Palace to see a quick scene and start the judge missions.

Secret Characters
With the exception of Ezel, you must complete the game once in order to unlock the hidden missions.

Babus - Clear the Left Behind mission, then enter a town and clear the With Babus mission.

Cid - Clear all 300 numbered missions.

Ezel - Choose Gossip in the Card Shop, then clear the Reconciliation mission.

Ritz - Clear the Mortal Snow mission.

Shara - Clear the A Maiden's Cry mission, then enter a town.

Unlock

the end of game credits
Beat the 300 standard missions and the extra Judge Missions.

Unlock the Semi-Secret characters
These characters are semi-secret, and you get them by having different mission items. Note that the secret characters MIGHT join your clan, but it isn't guaranteed.

Cheney - Complete a mission with Snake Shield as a mission item

Eldena - Complete a mission with Elda's Cup as a mission item

Lini - Complete a mission with The Hero Gaol as a mission items

Littlevili - Complete the "Clan League" mission

Pallanza - Complete a mission with Wyrmstone as a mission item

Quin - Complete the "Missing Professor" mission

Glitches

Duplicate Items and Units
To do this trick, you must have two Final Fantasy Tactics Advance cartridges and two Gameboy Advances (or GBA SP).

Link the two GBAs and have one person (you) go into any kind of battle. When it's your turn to move, hit B to cancel the menu and press start to open up the sub menu. Now put Save Quit and it'll bring you back to the title. Now load your original data and NOT your battle save. After loading it, now both you and your friends press start to go into the menu and select the ''Link'' option. Trade any items or units with your friends and after doing so, reset your game but don't save before doing it otherwise it'll erase your battle save. Now after resetting, load your battle save and you should still be during the battle. Either flee or defeat your foes and check your stuff. If done correctly, you should still have the same item or unit and your friend should have a copy of that item or unit. This will come in handy when trading secret characters or rare items.

Get 2 Sharas
Make sure that you don't do the S.O.S. mission. Complete the game and then get Shara. Now, play the S.O.S. mission. When you get into battle, you will notice that Ritz and Shara will be fighting some monsters. You can also use the 'other' Shara in your clan. And thus, there are 2 Sharas on the battlefield.

Secrets

Easy infinite Angel Rings
1. Accept the mission 'Lutia Mop-up'

2. One of the enemies will have an Angel Ring. Steal it.

3. Retreat from the battle. You will still have the Angel Ring you stole, but the mission can still be taken, and another Angel Ring can be stolen.

4. Accept the mission when it pops up again, and repeat.

Here's the true final boss battle (spoilers in there, watch it!):



Easy level trick-Smile
Get two moogles and have them learn the ability Smile from the Juggler class (learn thief A-abilities). Then have them change to the job you want them to level up as. Have the two use Smile on each other over and over again. Once they're at a really high level, have other units use some action on them to gain massive amounts of experience easy, thereby leveling up your entire clan too!

Infinite Money/Ribbons
After you complete the game and get Shara, take her ribbon, then get rid of her, and when you get her back she will have the ribbon equipped again. Sell for 20000, then repeat. This way, you can get as many ribbons, money, and seventh-heavens you want.