Editing Artificial Intelligence (section)

====PS2 remake====
Developer [[Arte Piazza]] built off of Heartbeat's foundation in the PSX version of ''Dragon Quest IV'', but overemphasized the deliberately irrational behavior to the point that the A.I. is frankly unreliable. Too much priority is given to healing even with the "Show No Mercy" tactic, with monsters that know [[Omniheal]] abusing the recovery spell even if their HP has only been cut by 10% and wasting valuable MP. There is also considerable difficulty in understanding the random width of damaging spells and skills: for example if an enemy has 50 HP and an A.I. monster has the [[Fire Breath]] (40~60) and the [[Inferno]] (65~85) skills it will default to using the weaker breath attack and potentially leave the enemy alive. This is because the program improperly calculates the odds of the dealing the necessary 50 points of damage against the chance of dealing less, and does not consider using the stronger skill at all despite that being a guaranteed knock out.