As the game begins, you have to choose what kind of creatures you want composing your unit. Six portraits are lined up, you can click on one, and then click on another to swap places, or click on the "?" icon to randomize that creature's type. Mousing over each portrait shows a list of stats, and directional arrows show the way that creature can attack. Some creatures can only attack from two spaces away, while some can attack multiple times and some can smash against enemies in multiple directions. The assortment you choose goes a long way toward the ease of combat.
In battle, simply by clicking on one of your animals causes it to attack. Each turn that passes fills up your magic meter, which allows you to perform a few special moves during your turn. You can also order creatures who haven't yet attacked to swap places. Every battle you win levels up your surviving units, but they also lose a level every time they are knocked out. Between battles, you'll be able to heal and revive units, and then move around a overworld map containing shops and special treasures. The goal is to conquer all 7 castles on each map segment, and then proceed to a final destination.