Gonna be honest, this is straight up awesome. Honestly, the instruments used and how they are used just, so cool.
0:00-0:21 was awesome, even having what I saw as a spooky metroidy-vibe at 0:13
22-35 reminds me of the music played in DMC 3, inside of the leviathan (mission 8).
1:16-1:30, getting those epic kicks in =D
1:49+, soooooooo cooooooool, I love this part.
overall, epic