Music:
Title screen:       sonicsneakers - KH Halloween Town Remix - http://www.newgrounds.com/audio/listen/563651
128up stage:        Super Mario 3D World - Shifty Boo Mansion - https://www.youtube.com/watch?v=l6MfnbeilTY
Cosmic stage:       Andrew Gold - Spooky Scary Skeletons - https://www.youtube.com/watch?v=K2rwxs1gH9w
                    The Living Tombstone - Spooky Scary Skeletons (Remix) - https://www.youtube.com/watch?v=q6-ZGAGcJrk
Damnjelly stage:    Old RuneScape Soundtrack - Scape Scared - https://www.youtube.com/watch?v=snjrSlG26O0
Dlastons stage:     Undertale - Amalgam - https://www.youtube.com/watch?v=71u0i6J-Qes
                    Earthbound - Battle Against a Weird Opponent - https://www.youtube.com/watch?v=-ptrVQJT5Wc
Dribix stage:       【Karaoke】Happy Halloween【Off Vocal】 - https://www.youtube.com/watch?v=VJP1QM9jieA
                    Mario & Luigi: Dream Team Bros. Music - Boss Battle Theme - https://www.youtube.com/watch?v=hVlzSmW2ees
Erik stage:         MandoPony - Something Strange - https://www.youtube.com/watch?v=U7IzkME9qXA
                    Luigi's Mansion - Bogmire Battle - https://www.youtube.com/watch?v=paYabc3IO4Y
                    Luigi's Mansion - Boolossus Battle - https://www.youtube.com/watch?v=Odi-f7-RsFc
                    Luigi's Mansion - Boolossus (Split) - https://www.youtube.com/watch?v=ITV1QwSVuTg
                    The Binding of Isaac Soundtrack - A Mourner Unto Sheol - https://www.youtube.com/watch?v=irnikRf7hEY
                    Super Smash Bros. Crossover Themes: Team Metal's Theme - https://www.youtube.com/watch?v=1oSsBXCNwUY
Haegoe stage:       Sonic.EXE - Hill Act1 - https://www.youtube.com/watch?v=idXjnmfb8OY
Hop stage:          Costume Quest - Auburn Pines Skateboard Game - https://www.youtube.com/watch?v=D0GN8ylzsV0 
                    The Legend of Zelda: Twilight Princess - Twilight - https://www.youtube.com/watch?v=bUwkjIXaHEI
                    Mark Korven - Caleb's Seduction - https://www.youtube.com/watch?v=0r2E71jJtl4
                    Mark Korven - Witch's Coven - https://www.youtube.com/watch?v=tQLFMwR201g
                    Hyper Light Drifter - The Hermit - https://www.youtube.com/watch?v=euiSLzp10_0
Kady stage:         Amnesia OST - 13 - Suitor Attacks - https://www.youtube.com/watch?v=ndwRvLnpphw
Klazen stage:       Rozovian - ReMix: The Legend of Zelda: Ocarina of Time "Eye of the Storm" - http://ocremix.org/remix/OCR01950
Kyir stage:         Anodyne OST - Circus - https://www.youtube.com/watch?v=uvfDPgLL2w0
Lonetree stage:     Super Castlevania IV OST - Stage 7 The Library (7-1) - https://www.youtube.com/watch?v=g11Or2ZvKWU
Lss stage:          Ib OST - Dungeon 1 - https://www.youtube.com/watch?v=EXsdTCdFsWM
                    Shiki OST - Thirteen Moons - https://www.youtube.com/watch?v=owKwQD0cZgk
Patrick stage:      smaadnet - Creepy Shiz (Halloween) - http://www.newgrounds.com/audio/listen/508099
Piece stage:        Taz Wanted Music - Taz: Haunted (Normal) - https://www.youtube.com/watch?v=DO9UBIdtm9g
                    Taz Wanted Music - Taz: Haunted (Tiptoe) - https://www.youtube.com/watch?v=EpDOQ7ilPAo
                    Taz Wanted Music - Taz: Haunted (Spin) - https://www.youtube.com/watch?v=A5dNYg3ThlU
Piranha stage:      Dr Who 'Blink' Full Suite - Departing the Tardis - https://www.youtube.com/watch?v=E82YwxmQas8
Polaroid stage:     Super Smash Bros. Wii U - Ashley's Song (EN) - https://www.youtube.com/watch?v=_u_76yAC5cc
                    Deathsmiles - Boss Theme - https://www.youtube.com/watch?v=RrCiQus4oMk
                    Rin & Len - Trick and Treat - https://www.youtube.com/watch?v=HETDCuyS8cw
Quentin stage:      Luigi's Mansion: Dark Moon - Haunted Towers - https://www.youtube.com/watch?v=CrPv3QIk3w0
                    Luigi's Mansion: Dark Moon - Library Piano - https://www.youtube.com/watch?v=hHpecqQrT1k
Randomfan stage:    Super Mario Maker - Ghost House Theme (SMB3) - https://www.youtube.com/watch?v=TFOlc7lGZDU
Raynius stage:      Terranigma - Tenchi Souzou - https://www.youtube.com/watch?v=8DeM_lMRc_8
                    itsu - 時の回廊 - https://soundcloud.com/itsu-2/nxdepdbzmmtm
Smartkin stage:     Resident Evil 2 Soundtrack - Secure Place [R.P.D.] - https://www.youtube.com/watch?v=IcncYhYddUY
                    Resident Evil 4 Soundtrack - Target Practice - https://www.youtube.com/watch?v=QWmTjRblTVA
                    Medievil Soundtrack OST - Battle - https://www.youtube.com/watch?v=BBscHtQsgIA
Spicy stage:        Luigi's Mansion Dark Moon - Sticky Situation - https://www.youtube.com/watch?v=C6UPn5QGypQ
Voider stage:       Hyperion - Rin - https://www.youtube.com/watch?v=ZLAAo4j4fqY
                    gmtn. (witch's slave) - furioso melodia - https://www.youtube.com/watch?v=5rzjD2ImpCM
Wetwookie stage:    Composed by Phillip Glass (remixed and looped by SquattingDog) - It Was Always You, Helen (Candyman soundtrack) - http://www.newgrounds.com/audio/listen/425555
Zapmunk stage:      Tower of Guns OST - Demolition - https://www.youtube.com/watch?v=7f6cdSY7K6U
Zebbe stage:        Melancholia - Adrian Croitor - https://www.youtube.com/watch?v=u9WsZoceais
Final boss 1:       [Cytus] SHK - Halloween Party - https://www.youtube.com/watch?v=KJlkG0_0Swc
Final boss 2:       PRZMA - Bad Apple!! (PRZMA Remix) - https://www.youtube.com/watch?v=C9_RSsaCt4c
Final boss 3:       death-is-forever - The Horde! - http://www.newgrounds.com/audio/listen/367694
Final boss 4:       Sayonara Maxwell - Magalovania - https://www.youtube.com/watch?v=YRbNlbgqNLo
Final boss 5:       Johannes Bornlöf - Elysium 1 - https://www.youtube.com/watch?v=r3tGecGmJyA
Credits and Hub:    Jasper Byrne - Lone Survivor OST - Where Is It Going - https://www.youtube.com/watch?v=QwZirD1x5FM
                    Jasper Byrne - Lone Survivor OST - Sleep Forever Trailer Mix - https://www.youtube.com/watch?v=Q3Wmp0qWX_I