The golem flicked both arms forward and the vines around them lashed out, reaching for Kei like hungry lampreys. She fired her off-hand kunai, allowing it to spin instead of lancing with pinpoint precision. The weapon tumbled through the approaching vines, knocking them off course and tangling them momentarily together and slowing them enough that she danced casually aside, her skywalker seals making it easy to glide across air and away from danger.
Maybe it was just a coincidence, but I noticed that the only projectile that wasn't perfectly deflected, redirected, or dodged was this particular kunai. The golem has already shown that it is capable of perfectly blocking a projectile with the tip of a vine when it deflected the explosive disk.
So why didn't the golem block the kunai with the tip of a vine this time? Or have the vines simply move out of the way like the golem was capable of moving?
If the off-hand kunai not equipped with a seal, maybe the golem couldn't "see" the projectile coming because the kunai was mundane metal and the golem senses chakra.
Perhaps the golem can sense intentions, and therefore was unable to predict exactly how the kunai would bounce because Kei didn't know how it would bounce? Since the golem could predict how a blast disc would bounce, I assume it would be able to predict how a spinning kunai would bounce around.
The golem cocked its head in curiosity (was it startled? did it hesitate?)
Cocking one's head is a very animalistic behavior. Humans, birds, dogs, cats, and more animals all do it. I've heard that the evolutionary reason it exists is because it changes the elevation of one's ears, making it easier to pinpoint where a sound is coming from. Does the golem actually have ears? Is it just mimicking behavior it has seen in other animals/humans?
Before she could spring forth, Candoru leaped at the golem, rising up from where he had stealthily circled behind it. His jaws gaped wide, otherworldly teeth aimed straight for his enemy's head.
The golem swung a casual backhand, a motion that would have been impossible with human joints.
The golem didn't turn its head. Can it can see in all directions, or did it use a different sense entirely to locate Candoru? Does it hear Candoru, sense him through air pressure, or sense the chakra of his construct-body?
My theory is that the golem senses chakra, and knew where the stalagmites were positioned because they were part of it's body.
All the other beasts in the cave were hostile, so assuming the golem was hostile was a pretty safe bet, but what if the golem wasn't going to attack? We did attack the golem before it had even moved. Maybe our hostile action/intent made it respond in kind? Resisting Hazō's jutsu isnt necessarily an attack on him. Splitting the party in two does seem rather hostile though.