 Yuji Horii, in a 1989 interview, said that developers had perfected the series' game structure in "Dragon Quest III", and this was reflected by the transition from one character's quest to a party of heroes.The password system used on the first two "Dragon Quest" titles was dropped in favor of a save slot due in part to Horii's dislike of the long codes that players needed to memorize or record .Horii had a policy of removing any features from his games that had been used elsewhere, which turned out to be unworkable during "Dragon Quest III"s development when the game's world map concept was used first by another game maker in "Mirai Shinwa Jarvas", but Horii's team was too far into development to change anything.