Final Fantasy Tactics Advance has a lot of things to do and accomplish that it will keep you busy for quite a while. The game is pure strategy. It's kind of like chess, but with Final Fantasy characters. Battles make up a huge portion of the game and that's where you will spend most of your time. You move your units around and make them attack enemy units. How far you can move and how high you jump up in elevations depends on your job. Jobs like Ninja and Assassin have high move and jump ratings while jobs like Black Mage and Gunner have poor move and jump ratings. Your evasion is also determined by your current job.
Attacking enemy units from the sides or from behind have a better chance of striking than attacking from the front. How far you can attack depends on your weapon and the ability you're using. Some abilities can affect multiple targets while others may affect the whole field. Status ailments and benefits can affect your units. Some are harmful like Blind (Lowers accuracy and evasion) and Poison (Lose HP per turn). Other status effects can help you like Regen (Recover some HP per turn) and Haste (Boosts your speed).
There are many options to chose from when it comes to attacking enemies. Like using magic? Then jobs like the Black Mage and Alchemist are perfect for you. Want more beef in your physical attacks? Use jobs like Gladiator and Fighter to quickly defeat your foes. Speaking of jobs, there are more than 30 jobs in the game. Each job determines how your stats grow when you level up, what equipment you use, and what abilities you can use and learn. At first, you can only use basic jobs like Soldier and Thief. As you master A-abilities, you can move on to expert jobs like Summoner and Bishop. The game has 5 different races which are Human, Bangaa, Nu Mou, Viera, and Moogle. Some jobs can only be used by each race and even if 2 races use the same job, one will usually be better than the other in stats.