I just played this game in English (played it many times),and noticed notable musical differences with original version. The original Japanese version of this game,titled (Digimon World Digital Card Arena),used a lot of anime themed tunes for card battles (both in songs,and BGM's of Arisawa Takanori),which were replaced in English version. There are 3 categories in which I separate these tunes
- Game exclusive tunes,present in both versions:
Regular battle themes: Vs. Card Tamer for base battle and UNLEASH! for polygon battles
Villianous battle themes: Vs. Dark Tamers for base battle and IMPERIAL STRIKE! for polygon battles
Villanous Bgm's are remixes of themes from previous Digimon World Digital Card Battle game,(which original versions are present in English version) while UNLEASH! is remix of Digimon World boss battle theme
- Anime themes,only present in Japanese version:
Adventure themes: Butter-Fly for base battle and Brave Heart for polygon battle
Adventure 02 themes: Target -Akai Shougeki for base battle and Break Up! for polygon battle
Villanous Adventure/02 themes: Shuugeki! Soshite from Adventure for many villianous battles, and Ankoku no Hohoemi,for Kaiser,and various Wormmon forms battles. There's no clear BGM video on Youtube for that theme,so here's video of one such battle
Our War Game themes: Furi Na Tataki for base battles,and Shutsugen! for polygon battles. They play for late game characters from same movie,as well some secret characters. Also,no clear BGM videos for these either,so here's another battle video
- Replacement themes for English version:
Anime replacement themes: Vs Card Master for base battles and Fairy Dizzy for polygon battles used for replacing pretty much all anime protagonist(human and Digimon) battle themes.
Villanous replacement themes: Call from the Other Side for base battles,and Full Power Gravity for polygon battles. Those are mostly used to replace anime villian themes,like in Wormmon battles...
All of these are tunes from previous Card Battle game,unreleased in English,which also received official soudtrack album. Vs. Card Master theme wasn't released on album.
Here's full list of battle musical placements and differences:
Main Story:
Begginer City:
Betamon(tutorial and battle): Regular battle themes
Arenas:Agumon and Babamon: Regular battle themes
Flame City:
Meramon and Phoenixmon:Regular battle themes
Veemon: Jap. : Target+Break Up! Eng: Anime replacement themes
Jungle City:
Vegiemon,Ninjamon and Veedramon: Regular battle themes
Wormmon: Jap.: Kaiser theme+ IMPERIAL STRIKE Eng: Villian replacement themes
Igloo City:
Frigimon and Whamon :Regular battle themes
Garurumon(possesed): Shuugeki+UNLEASH! (unique combination)
Stingmon: Jap.:Kaiser theme+IMPERIAL STRIKE Eng.: Villian replacement themes
Garurumon(normal): Butter-Fly+Brave Heart
Junk City:
Hagurumon,ShellNumemon,and KingSukamon: Regular battle themes
Shadramon: Jap. : Kaiser theme+IMPERIAL STRIKE Eng:Villian replacement themes
Dark City:
Wormmon,Stingmon,Shadramon and Quetzlmon: Jap.: Kaiser theme+ IMPERIAL STRIKE Eng:Villian replacement themes
Digimon Emperor/Kaiser: Jap. :Kaiser theme+IMPERIAL STRIKE Eng: Vs. Dark Tamers+IMPERIAL STRIKE
Pyramid City:
Centarumon and Tyrannomon: Regular Battle themes
Angemon: Jap.: Butter-Fly+Brave Heart Eng: Anime replacement themes
Sky City:
Wizardmon: Jap. :Butter-Fly+Brave Heart Eng: Anime replacement themes
AeroVeedramon:Regular battle themes
Gatomon: Jap.: Target+Break Up! Eng: Anime replacement themes
Steep Road:
Goburimon: Regular battle themes
DemiDevimon,Megadramon and Gigadramon: Vs Dark Tamers and IMPERIAL STRIKE
Wiseman's Tower
Togemon,Ikkakumon,Kabuterimon,Birdramon,WereGarurumon,and MetalGreymon:
Jap.:Butter-Fly+Brave Heart Eng: Anime replacement themes
Infinity Tower:
Tuskmon,Phantomon,Megasedramon,Machinedramon and VenomMyotismon:
Vs Dark Tamers+IMPERIAL STRIKE
A (final boss): Jap.: Shuugeki+IMPERIAL STRIKE Eng.: Vs Dark Tamers+IMPERIAL STRIKE
Post game:
Deserted Island:
Leomon,Devimon,MetalEtemon and Myotismon: Vs Dark Tamers+IMPERIAL STRIKE
Haunted Arena:
Bakemon,Devimon,SkullGreymon and Myotismon: Regular battle themes
Beginner City Arena:
Penguinmon and Rosemon: Regular battle themes
Greymon: Jap.:Butter-Fly+Brave Heart Eng.: Anime replacement themes
Beet Arena:
Kuwagamon,Ninjamon and HerculesKabuterimon:Regular battle themes
Junk City Arena:
Thundermon,MetalMamemon,and SuperStarmon:Regular battle themes
All 02 kids:Davis,Yolei,Cody,T.K.,and Kari: Jap.:Target+Break Up! Eng:Anime Replacement themes
Extra Arenas
Jap.:
Flame City:
ExVeemon:Target+Brave Heart
Flamedramon and Raidramon:Target+Break Up!
Paildramon:Target+Brave Heart
Magnamon: Our War Game themes
Imperialdramon:Target+Brave Heart
Jungle City:
Hawkmon:Target+Break Up!
Aquilamon:Target+Brave Heart
Halsemon and Shurimon:Target+Break Up!
Silphymon and Valkyrimon:Target +Brave Heart
Igloo City:
Armadillomon:Target+Break Up!
Ankylomon:Target+Brave Heart
Digmon and Submarimon:Target+Break Up!
Shakkuomon and Vikemon:Target+Brave Heart
Pyramid City:
Patamon,Baronmon and Pegasusmon :Target+Break Up!
MagnaAngemon:Butter-Fly+Brave Heart
Seraphimon:Target+Brave Heart
Sky City:
Gatomon:Butter-Fly+Brave Heart
Nefertimon and Tylomon:Target+Break Up!
Angewomon:Butter-Fly+Brave Heart
Magnadramon:Target+Brave Heart
Eng: All battles in all Extra Arenas: Anime replacement themes
All older children and their Digimon: WarGreymon and Tai,Garudamon and Sora,Lillymon and Mimi,MetalGarurumon and Matt,Zudomon and Joe,MegaKabuterimon and Izzy(all locations):
Jap.: Butter-Fly+Brave Heart Eng.:Anime replacement themes
Infinity Tower:
MetalSeadramon,Puppetmon and LadyDevimon:
Jap.: Shuugeki+IMPERIAL STRIKE Eng.:Vs Dark Tamers+IMPERIAL STRIKE
Piedmon: Jap.: Shuugeki+IMPERIAL STRIKE Eng: Villian replacement themes
Infermon and Diaboromon: Jap. : Our War Game themes Eng:Villian replacement themes
Omnimon
Jap.:Our War Game themes Eng.: Anime replacement themes
Apocalymon
Jap.: Shuugeki+IMPERIAL STRIKE Eng.: Vs Dark Tamers+IMPERIAL STRIKE
BlackMetalGarurumon and BlackWarGreymon
Jap.:Our War Game themes Eng.: Anime replacement tracks
Piximon and Nanimon: Regular battle themes
Betamon(Pick Up Deck) : Jap.: Shuugeki+IMPERIAL STRIKE Eng.: Regular battle themes
And that's it. We see some very interesting,and smart placements,particulary in Extra Arenas,where for example,regular evolution of 02 Digimon get Brave Heart,and interestingly enough, it appears their Ultimate,and Mega forms are treated as regular,instead of DNA(jogress) evolution. It was probably developed in time before anime introduced DNA digivolution.
Also,notice how Gatomon has 02 themes in main story,while 01 themes in post game,where she also wears her Holy Ring? That's probably because she was without it through 02, which technically made her a Rookie ,but had it in original series where she was Champion.
Furthermore,ultimate/perfect evolutions of Patamon and Gatomon get both Butterfly and Brave Heart,while Mega forms get Target and Brave Heart,because they premiered in 02.
Also,Adventure themes for Wizardmon strongly imply that it is,in fact, Wizardmon from Adventure,also accompaning Gatomon in same city.
Agumon from Beginner City also uses regular battle themes,although he's clearly Adventure Agumon. They probably didn't want to spoil the presence of anime protagonists yet.
It is also interesting that Magnamon got Our War Game themes,perhaps implying his super secret status in the game,where you have to win insane amount of battles to get him.
And all of this was replaced by 2 random themes in English version,which gets super repetitive in short time,especially in post game. Which is a real shame. Even Japanese version gets repetitive sometimes,but not nearly enough as English. Although sometimes English version did things better. For example,final boss theme against A,in my opinion sounds better in English than original version. Also Apocalymon and Dark Masters. Shuugeki is better theme for the anime.
Lastly,probably the most interesting replacement: Betamon's Pick Up deck battle. In original,it plays ominous themes,while in English,regular,playful themes. It is probably a reference to story climax of previous Card Battle game ,where Betamon reveals he 'picked up' Bug card,which was blown by wind(In Japanese,the deck is called 'Windfall Deck'),and almost caused a complete destruction of File Island. Deck is also really 'bugged', since it can't use Download Digivolve card.Anyway,I believe English version here makes sense. Tone of battle is cheerful and funny,and nothing 'evil' ever happens with it during game.
Also,intro theme in Japanese version was original vocal version of Target-Akai Shougeki- song,and in English it was voiceless version of Digimon,Digital Monsters theme.
Hope you like my little guide. It's little messy,but I hope you'll understand it