This title was first released in 1991, as the fourth installment of the FINAL FATALY series. It was a huge success due to its dramatic stories and unique characters. FINAL FANTASY IV introduced the Active Time Battle system (ATB), which is synonymous with this series. The Augment system was also introduced in this title, which allowed players to transfer abilities from different characters. The iconic title has many other incredible features. Voice acting in event scenes. Key events are described with spoken dialogue. Characters experience visibly emotional depictions. New mapping features: Players begin with blank maps, which adds an extra dimension of mystery to the game. The Jukebox allows players to listen to any music they like.