Final Fantasy III's battle system, arguably the most important part of any RPG, has more in common with the first game than its followers. Here, you input commands for all four characters at once, they all execute those attacks and then you input the next set - any Fantasy you've played past number four unfolds quite a bit differently. With the active time battle system (introduced in IV), commands are constantly being entered and enemies continue to attack even while you're choosing your next move. Since FFIII battles lack the ATB, there's no way to layer attacks or perform complicated assaults - it's an NES-era RPG , after all.
You'd think things like agility and strength would dictate who lives and dies in a battle, but the conventions of modern RPGs don't seem to apply. After one random battle, our thief and white mage stood tall while the knight and dragoon were dead. Why is that? And why would the thief, with speed that outclasses everything else, not always move first? Such discrepancies make it doubly hard to construct a solid battle plan for the nail-biting boss fights.