I can easily post a shyt ton of music, most of which coming from the Final Fantasy series alone. (Doing my best to avoid posting story spoilers)
Greatest song ever made, no question. Tell me any other song that has 4 movements (each representing an aspect of the Antagonist) mixed with Tocata & Fugue in D minor with various leitmotifs from the game itself as well as counter melodies (one of which being the main villians theme song) seamlessly included in said song... Dancing mad is an 18 minute masterpiece. the Third Tier being my personal favorite, due to the almost heavenly tone like that of which you would hear in a church, which is fitting as it represents the antagonists ascent into godhood (Kefka is probably the only game antagonist I can think of who actually does win in the end and get what he wants)
Then we have another from FFVI, "The Decisive Battle". A very heroic sounding song which debuts during the Ultros fight (fukker was a troll. "Yeouch Seafood soup is not on the menu!") Really gets you pumped up for his fight (Also fukk Banon, he was useless)
lastly from FFVI, we have "Battle to the death" (Aka Atma Weapon Battle). It sounds like a traditional FF battle song but the melody is purposefully changed and warped which is one of the reasons I like it.
ok now we move onto the other Final Fantasies
Starting withFFX and its boss song "Fight with Seymour (Asses)". A really energetic song that changes the tone of the game dramatically considering FFX is a very dark and depressing game.
Best FFX song comin up (Not counting "Blitz Off") Pops on during the halfway point and is just as bad ass as the battle it shows up in
All hail "Challenge"!
Now comes for the granddaddy of all FF battle and boss music.
Despite being a battle theme, Im posting this here since FF1 uses the battle song for the boss music aswell.
The memories I get of when I got my shyt wrecked by Warmech near the beginning of the game
Anyway lets move away from Final Fantasy and go to Persona
Another series with good boss music. And we will start with the Persona 1 Remake's boss theme.
Its pretty heavy on the beat and has lyrics but it really sets the tone for each boss you come across. (Outside of that retarded robot rat boss with the corny
carnival music )
Next up is the Persona 2 EP boss music, pretty actiony, doesnt have lyrics. all around its more similar to the SMT games than it is to the current Persona games.
Really has that 90s vibe
[edit] holy shyt, I left this tab open all night. didnt post it