People have been pointing out the Guilty Gear Xrd -Sign- OST, but not the older Guilty Gear soundtracks (which have completely different songs) or the Blazblue soundtracks.
Guilty Gear XX:
Included with Guilty Gear XX Accent Core Plus R and Guilty Gear XX #Reload Steam purchases (the latter is missing a couple of songs the former has, but is mastered with greater dynamic range). (
My favourites off that are
(both harpsichord-heavy hard rock),
(more of an 80's synthpop thing, especially the
(good end-of-the-world music, though moreso in the
There are kinda two soundtracks here. Calamity Trigger & Continuum Shift both go for something of a techno-rock style, with a bit of baroque influence throughout. (YouTube Playlist for preview) Also, the included OST for Continuum Shift in the Steam download is only at 128kbps MP3, so you'll want to extract the .ogg files from the game data for those using some kind of .pac file unpacker, such as QuickBMS.
The other soundtrack is Chronophantasma's, which ditches the techno aspect and goes full force into speed metal and neo-baroque styles. No Steam release until February, so I'm not sure how best to get the OST until then other than one of the console versions (assuming it is included), but this is the least badly compressed YouTube playlist I can find.
My favourites from these are
Bullet Dance II (specifically the Chronophantasma version),
Condemnation Wings (so far all hard violin rock),
Thin RED Line (sounds like Kansas's Belexes, but more hard rock),
and Alexandrite (more of a techno dance song).