... Well.. Final Fantasy Terms...
I'll go with 'Battle with the Four Fiends' from FFVI.
Other game wise....
I don't know what the song was called. u u; But it was in Castlevania IV. And then 'Oracle' from Secret of Mana...
And this really isn't video game music.. but the fight music that's in Naruto... by Toshiro Masuda... Not a big Naruto fan.. but that composer has something going for 'em.
'Need to be strong' - Toshiro Masuda
'Heavy Violence' - Toshiro Masuda