Dr. Wolf's Monster

 is the boss of The Hunter's past.

Behavior
Dr. Wolf's Monster has several attacks:
 * Fires a random spray of bullets towards the player.
 * Forms a sword made of bullets and swings it around itself.
 * Summons bullets in lightning bolt formations that fly out from the top of the screen.
 * Summons a formation of bullets resembling the German Parteiadler which will then spread out in all directions.

Trivia

 * The Doctor and his monster are likely based on enemies from the Wolfenstein franchise.
 * As a mad scientist with a twisted creation, they are likely additionally a reference to Frankenstein and Frankenstein's monster.
 * The Monster's core turns red when he takes damage, performs certain attacks, or dies.
 * Dr. Wolf buffing Dr. Wolf's monster is much like Saru and Bananacher from Bomberman 94.