Think a gameboy game can't be amazing? Think again!
The story is, in a nutshell, is about a brother and sister, Ephraim and Erika, who are the son and daughter of the king of Renais. Then, can't remember the name, a normally peaceful empire invades Renais and a great darkness has covered the land. So Ephraim and Erika have to save it and you'll get a whole bunch of friends to help you out that are very memorable.
The strategy in this is just awesome. And although it is a small detail, it shows the combat when you attack, which I guess is partly the reason I like it more than FF Tactics. I think the game is longer than FF as well. There is a lot to the inventory part of the game. There are spears, swords, axes, and bows which all have a durability thing to them so you eventually have to repair them, this is a good thing.
If you have a GBA or DS, play this game.