Dragon Ball Kai used a new background musical score by Kenji Yamamoto , composer of the Dragon Ball video games. His score was used regularly for all releases of episodes 1-95, however, he was given a layoff notice from Toei Animation after it was discovered that he had spent nearly his entire career at Toei infringing off of works from various western artists (such as Earth, Wind and Fire, Pink Floyd, Stratovarius, Propaganda, James Horner and Danny Elfman) and eventually resigned. The last few episodes of Dragon Ball Kai , as well as Japanese reruns of past episodes, made use of music recycled from Dragon Ball Z by Shunsuke Kikuchi (although the Dragon Ball Kai theme songs remained intact), however, the placing of the music differed from the original series. It is unconfirmed if the original matching of the tracks with the scenes as the original series will ever be released.
Several new notable features include: Battle Replay, night and day stages, the Wii's online capability. Battle Replay allows players to capture their favorite fights and save them to an SD card to view later on. Night and day stages allow for more accurate battles in Dragon Ball History, as well as the ability to transform into a Great Ape by using the moon (although Saiyans such as Scouter Vegeta can still transform in daytime via artificial moons). There are also several other time differences, such as dawn and afternoon. Not all stages provide different times. The player can also change the aura of their character. The Wii version features online multiplayer capability,  the first game in the series to have such a feature. Players can fight against anyone from around the globe with a ranking system showing the player's current standing compared to anyone else who has played online. As compensation for the lack of online, Spike added a new "Disc Fusion System" to the PlayStation 2 version: inserting a Tenkaichi 1 or Tenkaichi 2 disc during play unlocks Ultimate Battle or Ultimate Battle Z, (using discs of different regions will not work),  modes featured in the respective games needed to unlock them. The game also supports 480p for both the Wii and the PlayStation 2 versions.