Now here's a game soundtrack that I'm familiar of! Here's a list of the track names for it:
SunshineCITY - Track 1
DarkmoonCITY - Track 2
Shine Terminal/Dark Terminal - Track 3
Tamer Home - Track 4
DigiColiseum - Track 5
Login Mountain/Chip Forest - Track 6
Sunken Tunnel/Transfield - Track 7
Loop Swamp/Register Jungle - Track 8
Process Factory - Track 9
Macro Sea/Access Glacier - Track 10
Highlight Haven - Track 11
Palette Amazon/Proxy Island - Track 12
Shadow Abyss - Track 13
Limit Valley/Task Canyon - Track 14
Thriller Ruins/Magnet Mine - Track 15
Chaos Brain - Track 16
Battle - Track 17
Advanced Battle - Track 18
Circuitboard Duel - Track 19
Boss - Track 20
Final Boss - Track 21
Wi-Fi Battle - Track 22
Event: Virus Infection - Track 23
Event: Strange Mood - Track 24
Event: All Your Powers Combined! - Track 25
Defeated/Loser - Track 26 (Note: In-game when you're defeated, only the first portion of it plays, as it immediately goes to the player back in Tamer Home. The rest of the theme goes unheard.)
Event: ExoGrimmon Appears! - Track 27
Unknown Track 1 - Track 28 (This theme is nowhere to be heard in-game, so it's an unused theme but unknown what was it meant for.)
Menu - Track 29
Title Screen - Track 30
Credits - Track 31
Digivolve! - Track 32
Victory/Winner - Track 33
Digi-Matching - Track 34
Unknown Track 2 - Track 35 (This theme is nowhere to be heard in-game, so it's an unused theme but unknown what was it meant for.)
World Map - Track 36
Farm Island - Track 37
Angel BGM Board - Track 38 (Based off from Minuetto by Luigi Boccherini)
Dragon BGM Board - Track 39 (Based off from España, Rhapsody for Orchestra' by Emmanuel Chabrier)
Bird BGM Board - Track 40 (Based off from The Swan by Saint-Saens)
Sea BGM Board - Track 41 (Based off from Belle nuit, ô nuit d'amour' from 'The Tales of Hoffmann' by Jacques Offenbach)
Devil BGM Board - Track 42 (Based off from Little Fugue in G Minor by Bach)
Beast BGM Board - Track 43 (Based off from Hungarian Dance No. 5 by Johannes Brahms)
Mech BGM Board - Track 44 (Based off from Prelude and Fugue in C major, BWV 846 by Bach)