_Crystal Defenders_ is a defensive strategy game, in which the player must
guard a path using troops taken straight from the _Final Fantasy_ job classes,
such as Soldiers, Archers and Black Mages. Every enemy who traverses the
entire path means another crystal lost to the party.

The game has three modes: W1 teaches the player the basics, W2 introduces
Power Crystals which add a layer of strategy, and W3 is filled with more
complex maps.