As seen in the image, U-9 is at least 80 feet tall, perhaps even taller than Uroboros Aheri of the final release; if the U-9 was in the final game, then it would be the tallest creature ever fought in the Resident Evil series. Fighting this BOW would've likely included at least two stages: one where the monster is hunched over, and one where it stands upright. It was apparently going to be possible to blast the monster's head completely off; what this would've done is unknown.