It will solve the sound problem in Updated version.
To install place the music folder in the zip file next to the packed folder in "resources" in the game files. Right-click on game in library -> Properties -> Local files -> Browse local files -> CommonRedist -> OpenAL -> 2.0.7.0 -> oalinst.exe. There is an occasional glitch where the music won't play, just leave the run and return. The page contains the Roblox Music ID for Hotline Miami Soundtrack OST Hydrogen, as well as other useful information and a few songs you may like if you. Its quick restarts turn it into a hazy, endless dream, something that feels completely modern. Yes I am aware that some (2) songs aren't from HM2, but they're similar enough. Yet Hotline Miami feels completely disconnected from gaming in the 80s or 90s on a mechanical level. The first three parts of Hotline Miami have the same four 'main level' songs looping repeatedly in consistent order: Paris by M/O/O/N, Crystals by M/O/O/N, Hotline by Jasper Byrne, and Hydrogen by MOON. Hotline Miami 2: Wrong Number has 27 scenes separated. Highball was made available in a patch, and Exposed was made available to PS Vita/PS3 owners, and was included in preorders from Get Games. 2 additional chapters have since been made available. A music pack that replaces most of the music in the game with songs from Hotline Miami 2! (Title Screen, It Lives, Isaac, ?, Satan, The Lamb and Hush fight music is not changed). Scattle scores most of the music in Parts 4 and 5 of Hotline Miami, including the near totality of Bikers music. The Prelude and chapters 1 to 15 are played as the main protagonist, Jacket, and the remaining 4 are played as Biker.