http://youtu.be/mx8M96zEsgk

Pretty much everything from the Parodious series.

Out of time constraints they had to resort to using classical music in their soundtrack, and mixed them so well you start jamming to the music.

https://youtu.be/1bLDK-b-ll8?si=vua0ZNGtm8Cl4M0N

Probably the best Parodious game, and with the best music.

One of Fromsoftware's older titles. while the gameplay particularly the controls sucked. I gotta admit it had a banger soundtrack.

Touhou Project and When They Cry fall in a weird category. They're kinda popular outside the typical "PC/console gamer" circles, and yet a very few people in general gaming forums recognise them. After all one is SHMUP and the other is visual novels, and both are primarily PC series.

Countless music to recommend from these two (especially Touhou) but here are a random few:

Dear You: https://youtu.be/LJQlwOE2haM

Worldend Dominator: https://youtu.be/fAKkw71ff3U (plays during one of the greatest sequences in fiction).

The Executioner: https://youtu.be/hg9XPcPKYAQ

I'll just skip Touhou coz I struggle to narrow it down to a few. Touhou 6-12 are filled with amazing soundtracks. I honestly think ZUN might be the best video game composer of all time. I initially didn't care about the majority of his music, but once you get into and familiarize yourself with the series, there is just no getting out!! The music will haunt you forever lol. Nevermind... I'll name the few soundtracks that I liked before he got me brainwashed:

Locked Girl ~ The Girl's Secret Room

Imperishable Night ~ Eastern Night

Illusionary Night ~ Ghostly Eyes

Voyage 1969

Lunatic Princess

Faith is for the Transient People

Satori Maiden

I enjoyed these on a first listen.

Going through my playlists and came across an old goodie from the early XBLA days:

Sin & Punishment Star Successor had some banger tracks