Õkami has some good tunes.
Emperor of Eternal Darkness is a menacing theme which some may have to get used to. Menacing music is a high-tier in my personal preference however, so it'd be wierd for me not to pick it out.
The Sun Rises is a fresh final boss-track which depicts hope and victory rather than tensity and evil. It also has a nice feel to it and doesn't stand too much out from your average fighting-music.
I would name others, but these are the two best examples. I think it'd be a good idea to check the soundtrack out, especially since it's very easy to find on youtube.