Another updated version was also made for the Taito Type X arcade system and home consoles as The King of Fighters '98: Ultimate Match (KOF '98UM), which expands the number of playable characters, further tweaks the gameplay and features a third fighting style option. An updated Dreamcast version titled The King of Fighters: Dream Match 1999 was released in 1999, featuring remade 3D backgrounds. KOF '98 was also released for the Neo Geo CD in 1998 and for the PlayStation in Japan in 1999. It was advertised by SNK as a 'special edition' of the series, as it featured most of the characters who appeared in the previous games (from KOF '94 to '97). It is the fifth game in The King of Fighters series. The King of Fighters '98: The Slugfest, known in Japan as The King of Fighters '98: Dream Match Never Ends (KOF '98), is a fighting game released by SNK for the Neo Geo arcade and home consoles in 1998.