Hey there, and welcome.
This thread contains a list of every music code in vanilla MM8BDM for those who wish to listen to a certain song when scoring frags or something like that.
As for how to use said music codes, use the "changemus" command through the console! Just uh.. don't go too crazy with it.
The thread will be updated as new versions of the game release, but only after a certain amount of time to avoid spoilers. Well, assuming this isn't the last major update anyway.
While I previously had fan-made expansions and map packs as part of the list, I won't be including those here as this thread is focused on the base game.
Despite the research, I'm sure there are plenty of errors littered all across the list. If you come across any, please let me know and I'll look into it.
Expect plenty of spoiler usage as well. Aside from making it (hopefully) easier to navigate,
this list does contain spoilers for the single-player campaign. You've been warned!
Mega Man 1-6Mega Man 1 + Powered Up!DRLIGHT ~ Dr. Light Lab / Intro Stage (Powered Up!)
MM1PWILY ~ Dr. Wily Theme (Powered Up!)
MM1SEL ~ Stage Selected
CUTMUS ~ Cut Man Stage
GUTMUS ~ Guts Man Stage
BOMMUS ~ Bomb Man Stage
ELEMUS ~ Elec Man Stage
ICEMUS ~ Ice Man Stage
FIRMUS ~ Fire Man Stage
OILMUS ~ Oil Man Stage
TIMMUS ~ Time Man Stage
1DW1MUS ~ Wily Stage 1
1DW2MUS ~ Wily Stage 2
MM1BOSS ~ Boss
MM1PINT ~ Boss Dialogue (Powered Up!)
MM1PBOSS ~ Boss (Powered Up!)
MM1WBOSS ~ Wily Boss
MM1PWINT ~ Wily Boss Dialogue (Powered Up!)
MM1PWBOS ~ Wily Boss (Powered Up!)
Mega Man 2D_DM2TTL ~ Intro
MM2TITL ~ Title Screen
D_DM2INT ~ Password
MM2SEL ~ Stage Selected
BUBMUS ~ Bubble Man Stage
AIRMUS ~ Air Man Stage
HEAMUS ~ Heat Man Stage
FLAMUS ~ Flash Man Stage
QUIMUS ~ Quick Man Stage
WOOMUS ~ Wood Man Stage
CRAMUS ~ Clash/Crash Man Stage
METMUS ~ Metal Man Stage
2DW1MUS ~ Wily Stage 1
2DW3MUS ~ Wily Stage 3
2DW4MUS ~ Wily Stage 4
MM2BOSS ~ Boss
Mega Man 3MM3SEL ~ Stage Selected
SNAMUS ~ Snake Man Stage
TOPMUS ~ Top Man Stage
NEEMUS ~ Needle Man Stage
HARMUS ~ Hard Man Stage
GEMMUS ~ Gemini Man Stage
MAGMUS ~ Magnet Man Stage
SPAMUS ~ Spark Man Stage
SHAMUS ~ Shadow Man Stage
3DW1MUS ~ Wily Stage 1
3DW2MUS ~ Wily Stage 2
3DW3MUS ~ Wily Stage 3
MM3BOSS ~ Boss
MM3BOSS2 ~ Wily Boss
MM3CRE ~ Credits
Mega Man 4MM4INT ~ Intro
MM4SEL ~ Stage Selected
PHAMUS ~ Pharoh Man Stage
DIVMUS ~ Dive Man Stage
DRIMUS ~ Drill Man Stage
TOAMUS ~ Toad Man Stage
DUSMUS ~ Dust Man Stage
RINMUS ~ Ring Man Stage
SKUMUS ~ Skull Man Stage
BRIMUS ~ Bright Man Stage
MM4ITEM ~ Item Get
4DC2MUS ~ Dr. Cossack Stage 2
4DW1MUS ~ Wily Stage 1
MM4BOSS ~ Boss
MM4BOSS2 ~ Final Boss
Mega Man 5MM5SEL ~ Stage Selected
CHAMUS ~ Charge Man Stage
STOMUS ~ Stone Man Stage
NAPMUS ~ Napalm Man Stage
WAVMUS ~ Wave Man Stage
GYRMUS ~ Gyro Man Stage
GRAMUS ~ Gravity Man Stage
STAMUS ~ Star Man Stage
CRYMUS ~ Crystal Man Stage
5CASTLE ~ Dark Man Castle Intro
DARMUS ~ Dark Man Stage
5CASTLE ~ Wily Castle Intro
5DW1MUS ~ Wily Stage
MM5BOSS ~ Boss
MM5BOSS2 ~ Final Boss
Mega Man 6MM6SEL ~ Stage Selected
TOMMUS ~ Tomohawk Man Stage
CENMUS ~ Centuar Man Stage
KNIMUS ~ Knight Man Stage
BLIMUS ~ Blizzard Man Stage
PLAMUS ~ Plant Man Stage
FLMMUS ~ Flame Man Stage
WNDMUS ~ Wind Man Stage
YAMMUS ~ Yamato Man Stage
MRXMUS ~ Mr. X Stage
6DW1MUS ~ Wily Stage
MM6BOSS ~ Boss
MM6BOSS2 ~ Final Boss
NEWINT ~ Ending
Mega Man 7-8Mega Man 77INTMUS ~ Ruined Street
MM7SEL ~ Stage Selected
FREMUS ~ Freeze Man Stage
JUNMUS ~ Junk Man Stage
BURMUS ~ Burst Man Stage
CLOMUS ~ Cloud Man Stage
SPRMUS ~ Spring Man Stage
SLAMUS ~ Slash Man Stage
SDEMUS ~ Shade Man Stage
TURMUS ~ Turbo Man Stage
MM7BOSS ~ Boss
7DW1MUS ~ Wily Stage 1
7DW2MUS ~ Wily Stage 2
7DW3MUS ~ Wily Stage 3
7DW4MUS ~ Wily Stage 4
MM7OBOS ~ Wily Boss
MM7BASS ~ Bass
MM7FBOS ~ Final Boss
MM7END ~ Credits
Mega Man 8MM8SEL ~ Stage Selected
TENMUS ~ Tengu Man Stage (PS1)
TENMUS2 ~ Tengu Man Stage (SS)
ASTMUS ~ Astro Man Stage
SWOMUS ~ Sword Man Stage
CLNMUS ~ Clown Man Stage
SEAMUS ~ Search Man Stage
FROMUS ~ Frost Man Stage
GREMUS ~ Grenade Man Stage
AQUMUS ~ Aqua Man Stage
MM8INT ~ Duo Stage
DUOMUS ~ Duo Battle
MM8BOSS ~ Boss
8DW1MUS ~ Wily Stage 1
8DW2MUS ~ Wily Stage 2
8DW3MUS ~ Wily Stage 3
8DW4MUS ~ Wily Stage 4
CREDMUS2 ~ Credits
Mega Man & Bass + The Wily Wars / Wily TowerMega Man & BassMMBTITLE ~ Title Screen
MUSMUS ~ Robot Museum
MMBSEL ~ Stage Selected
TENMUS3 ~ Tengu Man Stage (MMB)
ASTMUS2 ~ Astro Man Stage (MMB)
DYNMUS ~ Dynamo Man Stage
COLMUS ~ Cold Man Stage
GROMUS ~ Ground Man Stage
PIRMUS ~ Pirate Man Stage
BRNMUS ~ Burner Man Stage
MGCMUS ~ Magic Man Stage
MMBBOSS ~ Boss
MMBKING ~ King Stage
MMBDW ~ Wily Stage
MMBOBOS ~ Final Boss
The Wily Wars / Wily TowerMMWTSEL ~ Stage Selected
BRGMUS ~ Buster Rod G Stage
MWSMUS ~ Mega Water S Stage
HSHMUS ~ Hyper Storm H Stage
MMWTBOSS ~ Boss
WTDW1MUS ~ Wily Stage 1
WTDW4MUS ~ Wily Stage 4
MMWCRE ~ Credits
Mega Man 9-10Mega Man 9ENDMUS ~ OPENING 1
CONMUS ~ CONCRETE JUNGLE
TORMUS ~ THUNDER TORNADO
SPLMUS ~ SPLASH BLUE
PLUMUS ~ PLUG ELECTRIC
JEWMUS ~ JEWEL TEMPTATION
HORMUS ~ HORNET DANCE
MGMMUS ~ MAGMA BURNING
GALMUS ~ GALAXY FANTASY
9DW1MUS ~ FLASH IN THE DARK
9DW2MUS ~ WE'RE THE ROBOTS
9DW3MUS ~ STRANGE WORLD
9DW4MUS ~ CASTLE OF EVIL
MM9BOSS ~ BOSS
MM9FBOS ~ WILY MACHINE
CREDMUS ~ STAFF ROLL
9ENDLESS ~ MAZE OF DEATH
FAKMUS ~ OVERDRIVE SCRAMBLE
ARREST ~ OPENING 2
Mega Man 10M10INT ~ SUSPICION
TOGETH ~ GO TOGETHER
MM10TITL ~ TITLE
MM10SSEL ~ STAGE SELECT
MM10SEL ~ STAGE START
BLAMUS ~ KING OF BLADES
PUMMUS ~ POLLUTED PUMP
COMMUS ~ DESERT COMMANDO
CHIMUS ~ ABSOLUTE CHILL
SHEMUS ~ CYBERSHEEP'S DREAM
STRMUS ~ FIREBALL STRIKE
NITMUS ~ NITRO RIDER
SOLMUS ~ SOLAR INFERNO
MM10BOSS ~ BOSS
MM10SUP ~ FUTURE WORLD
MM10CRI ~ CRISIS
WILYCRI ~ EVIL WILY
10ROLL ~ FOR YOU
10CASTLE ~ DR. WILY CASTLE
MM10RAIN ~ SILENT RAIN
10DW1MUS ~ ABANDONED MEMORY
10DW2MUS ~ AGAINST THE PRESSURE
10DW3MUS ~ NO TURNING BACK
10DW4MUS ~ STAIRWAY TO DARKNESS
10DW5MUS ~ DEEP IN SPACE
MM10OBOS ~ DR. WILY STAGE BOSS
MM10FB ~ DR. WILY MACHINE
MM10FBOS ~ DR. WILY CAPSULE
ENKMUS ~ HEART OF ENKER
PUNMUS ~ GET THE PUNK OUT
BALMUS ~ FAREWELL TO BALLADE
MM10CRE ~ STAFF ROLL
Mega Man I-VMega Man I-IVENKMUS2 ~ Wily Station (MMI)
PUNMUS2 ~ Wily Station (MMIII)
MMIVTITL ~ Title (MMIV)
BALMUS2 ~ Wily Battleship (MMIV)
MMIVFBOL ~ Wily Golem
MMIVFBOS ~ Wily Golem (Shorter Intro)
SADCRED ~ Credits (MMIV)
Mega Man VMMVTITL ~ Title
MMVSEL ~ Stage Start
MERMUS ~ Mercury
VENMUS ~ Venus
MARMUS ~ Mars
NEPMUS ~ Neptune
RUSHSPA ~ Rush Space
JUPMUS ~ Jupiter
SATMUS ~ Saturn
URAMUS ~ Uranus
PLTMUS ~ Pluto
MMVBOSS ~ Boss
TERRAI ~ Terra
MMVWST ~ Space Rulers
MMVSSH ~ Space Shooting Stage
VDW1MUS ~ Wily Star Stage
MMVFBOS ~ Sunstar
MMVEND ~ Ending
Capture the FlagCTFMUS1 ~ "Original Track 07" by Famitard
CTFMUS2 ~ "Stage 42 (Original)" by kevvviiinnn
CTFMUS3 ~ "Stage 20 (Original)" by kevvviiinnn
CTFMUS4 ~ Trash Man - Mega Man Super Fighting Robot
CTFMUS5 ~ "Clockwork Factory" by Mr.X
CTFMUS6 ~ Bubble Crab - Mega Man X2
CTFMUS7 ~ Cyclical Rampage - Mega Man Unlimited
CTFMUS8 ~ Wily's Field - Mega Man Soccer
CTFMUS9 ~ Wood Field - Mega Man Soccer
CTFMUS10 ~ Circuit Man - Mega Man Rock Force
CTFMUS11 ~ "Frigid Ocean" by Mr.X
CTFMUS12 ~ "Molten Mountain" by Mr.X
CTFMUS13 ~ "Penguins of the Apocolypse" by FearOfDark
CTFMUS14 ~ "Rope" by Javel
CTFMUS15 ~ Photon Man - Mega Man Rock Force
CTFMUS16 ~ "Power Shot!" by Wally Chantek
CTFMUS17 ~ "MetalMouth Vulture" by Famitard
CTFMUS18 ~ Slow Moon - Streets of Rage 2
CTFMUS19 ~ Area B - Shatterhand
CTFMUS20 ~ Fortress - Ganbare Goemon 2: Kiteretsu Shougun Magginesu
CTFMUS21 ~ Stage 2-1 - Ninja Gaiden 3
CTFMUS22 ~ "Highway Lottery" by Donutshoes
CTFMUS23 ~ Water Works - Bullet Bounce
CTFMUS24 ~ Stardust Speedway Past - Sonic CD
CTFMUS25 ~ Streets of Desolation - Batman
CTFBOSS1 ~ Disney TaleSpin - Boss Battle
CTFBOSS2 ~ Ufouria - Boss Battle
CTFBOSS3 ~ Mini Boss - Mega Man 8
CTFBOSS4 ~ Nightmare - Kirby Adventure
CTFBOSS5 ~ Teenage Mutant Ninja Turtles III: The Manhattan Project (NES) - Super Shredder Battle
Victory FanfaresMM1VIC ~ Boss Defeated (MM1)
MM2VIC ~ Boss Defeated (MM2)
MM3VIC ~ Boss Defeated (MM3)
MM4VIC ~ Boss Defeated (MM4)
GAMEWIN ~ All Stage Clear (MM4)
MM5CLEAR ~ All Stage Clear (MM5)
TORNWIN ~ All Stage Clear (MM6)
MM7VIC ~ All Stage Clear (MM7)
MMWTVIC ~ Boss Defeated (MMWT)
WTWIN ~ All Stage Clear (MMWT)
MM10VIC ~ Boss Defeated (MM10)
MM10WIN ~ All Stage Clear (MM10)
MMVVIC ~ Boss Defeated (MMV)
MMVVIC2 ~ All Stage Clear (MMV)
ResultsD_STWIN ~ SHOP (MM9) ~ Win
D_STLOSE ~ SUSPENSE (MM9) ~ Loss
WTSELECT ~ Dr. Light Lab (MMWT) ~ Dr. Light Team Win
WILYVIC ~ SHOP -FORTE- (MM10) ~ Dr. Wily Team Win
COSSVIC ~ Ending (MM4) ~ Dr. Cossack Win
MM4GO ~ Game Over (MM4) ~ Dr. Cossack Lose
MMBSAVE ~ Save (MM&B) ~ King Win
MMBGO ~ Game Over (MM&B) ~ King Lose
Miscellaneous / SpecialMM8BDMIN ~ Theme of Mega Man 8-Bit Deathmatch (Title Version)
MM8BDM ~ Theme of Mega Man 8-Bit Deathmatch
D_TTFTW ~ Ducktales - "The Moon"
GHOULS ~ Ghost N' Goblins - "Stage Theme 01"
D_E1M4 ~ DOOM - "Kitchen Ace (And Taking Names)"
STATIK
AMBFIRE
ERBATTLE ~ The Evil Robot
ERBESERK ~ Evil Overload
MMWTFBOS ~ Journey to Genesis
PROMBOSS ~ A Case of the Blues
FAKEBOSS ~ Untrustworthy Cops
QUIINT
QUINTRO
QUIBOSS1 ~ Temporanomaly - The Real Hero? You?
QUIBOSS2 ~ Temporanomaly - The Quintstones
QUIBOSS3 ~ Temporanomaly - Pogo Inferno
QUIBOSS4 ~ Temporanomaly - X? We only have a Q
QUIBOSS5 ~ Temporanomaly - Dectet
MGICPAST
MGICPRES
GUTSBUTT ~ Mega Man: The Animated Series - "It Guts Man!"
GUTSBOSS ~ Guts Man Power Battle! (MM:TPB)
COSSBOSS ~ Cossack Stage Boss - RushJet1
PROMTEAM ~ Against the Odds
MM1PWIL6 ~ The Great Genius Dr. Wily
GTENSION ~ Gamma Cometh
MM7BASS2 ~ Super Bass
RBNZASTA
RBNZAINT ~ Your World, Our World
MMIVDKIN
MMIVDUOK ~ Duo of Kings
AMBSTARS
TERRTALK ~ Advent of the Stardroids
COSSSPACE ~ Dr. Cossack's Spaceship
TERRAATK
TERRABOS ~ The Galactic Conqueror
MMKFBOS ~ We're the Killers
SUNTENSE ~ Wily Star Core
SUNBOSS1 ~ The Doomsday Weapon
ECLIPINT
SUNBOSS2 ~ Supernova
SUNBOSST
ECLIFBOL ~ Thy World Consumed
ECLIFBOS ~ Thy World Consumed (No Intro)
8BDMFDUO
8BDMFINT
8BDMFBOS ~ For Everlasting Peace
8BDMFIN ~ For Everlasting Peace (Finale)
SAROUTS ~ Lanfront
SARUIN ~ Discovering Purpose
SARFBOS ~ Super Adventure Rockman Battle Theme