The rolling HP meter essentially prevents characters from dying until their HP has decreased to zero. This becomes more of a major strategic point as the party's maximum HP increases: A character can still use regular battle actions while they are taking damage, including repeated amounts of mortal damage. This also applies to when HP is increasing as well, so if a character uses a healing item, the healing can be interrupted by a sufficiently powerful enemy attack. Should any characters have taken mortal damage, if they are alive once the player's turn comes around, they can enter commands as fast as possible in order to prevent unconsciousness.