
Beelzetolv is the sixth/true final boss of Caladrius, piloted by Beelzebub.
Profile
A ship that can move because Beelzebub added her own strengths to the demolished Wildduran.
Since it is only a ship used as entertainment against humans, she does not go full out in consideration of their weakness.
She was able to enter the human world then the gates of hell opened, but she has no particular goal. She just doesn't like the sight of humans in front of her and wants to give them despair. She may sound polite, but her attacks are nothing but cruel and merciless.
Details

The first phase only consists of dealing with tons of the sniper ships that have been harassing the player throughout the entire stage.
The second phase opens with summoning mooks that fly in crooked patterns before summoning hellgates and firing lasers from them, either from the left side of the screen or in zigzag patterns.
The final phase summons meteors that fire blue spread shots on impact. Meanwhile, it also summons a magic circle lined with indestructible orbs. There are gaps between the orbs that grow wider as the circle expands.