The game uses a battle system where you must tap with precise timing to continue attacking your enemies. To execute the maximum amount of damage, you must tap with perfect timing. This is easy to do by tapping the next character's icon a moment before the text on the battlefield reaches the enemy. Wait until the attack words get to the center of the enemy, then send in your next crew member. The better the timing, the more damage will occur. Each crew member has different timing windows and will require some adjustment. It is usually better to tap earlier than later in order to get a "Good" or "Great" rank; once you are past the "Perfect" rank window of opportunity there is no bonus.