Those who greatly dislike that Aria of Sorrow's main character isn't related to the Belmont clan whatsoever can safely relax, because the powerhouse known as Julius Belmont enters the stage to destroy every boss faster then Soma ever could.
Julius is only available to those who have completed the main quest. While he can't do most of Soma Cruz's fancy tricks, he can get around just as quickly by glitching through walls and hopping madly around the castle, producing almost inhuman sounds with every jump.
Note: This movie starts where a main quest TAS left off. We do not usually accept movies beginning from a save. Please read the rules to see our reasons.