The Final Emblem

The Final Emblem is the name of an alternate reality created by Escaflowne X, in which a number characters from the Fire Emblem series are main characters. This universe gets its name from a key item, "The Final Emblem", attached to which is a prophecy: "He who can claim the Emblem shall lead the universe into either one thousand years of Light, or one thousand years of Darkness."

Mechanics
The Final Emblem universe, unlike most Kingdom Hearts games, operates on a rather complicated battle and navigation system -- the simplest way to describe it would be a combination of Fire Emblem: Seisen no Keifu and Kingdom Hearts Re: Chain of Memories, Final Fantasy XIII, or perhaps similar to Dissidia - Final Fantasy -.

The battlefield is laid out in a way similar to a chessboard, or as if one were playing a tabletop RPG variant with a grid. Instead of controlling just one character, the player has access to multiple characters -- called "units" -- at a time. The only conditions for unit selection are that the player must bring at least one Lord to battle, and each map has a set limit to the number of units the player can use, which is anywhere from one to twelve, although after completing a map once, the unit cap is normally increased to twelve unless it's a special event.

Gameplay is turn-based between the player and the CPU. During the player's turn, they can reposition all of their units and command them to heal with items, defend a certain area, or if there are no actions to be taken, simply wait.

If an enemy is within a unit's "engagement" range (varies depending on the unit's Class and equipment), then another command becomes available: Engage. This shifts the gameplay into battle mode, in which the engaging unit is pitted against a (normally) random selection of enemies native to that map. Combat, surprisingly, is probably most similar to Kingdom Hearts II: the unit can chain attack combos, use magic (depending on their class), and use items. The battle continues until either all enemies are destroyed, or the unit is defeated, in which case (again, unlike the Fire Emblem games) they are knocked unconscious.