引用自 SnakeWildlife：

I grew up on lovely little gems like this, and the music is always rocking <3
R-Type, ProjectX-Amiga, B-Wing, so many like this have great tunes.

By chance would you consider adding a Music DLC so we can play while doing other things?

Hi there!!
The game music composer is The Neon Droid and by our current license we can't create any DLC with his music...
But this is not required, because all his tracks (including all tracks from the game) are available to listen for free on a lot of web resources - Spotify, Bandcamp, YouTube Music and many other!
According to Steam's policy, I probably cannot provide direct links to these resources, but they are all easily can be found using Google...

Here's a full game tracks list:
Main Menu Track: The Neon Droid - Love (No More Sunset, 2017)
Level 1 Track: The Neon Droid - Planet Neon (No More Sunset, 2017)
Boss 1 Track: The Neon Droid - Gangwars (Deadly Sunset, 2015)
Level 2 Track: The Neon Droid - Desert Ghost (Intrepid, 2021)
Boss 2 Track: The Neon Droid - Devil Groove [Extended Version] (Intrepid, 2021)
Level 3 Track: The Neon Droid - Exile Feat. Retröxx (Optimized Human, 2020)
Boss 3 Track: The Neon Droid - The Order (Revenge Of Sunset, 2016)
Final Credits: The Neon Droid - Insomniac [Extended Version] (Breach Protocol, 2022)