Thanks for playing!
I'm not sure how to add a description to the entry, but you can continuously hold the block button and you will always block, no matter what, unless you yourself are attacking at the same time.
The boss is unfortunately in an incomplete state. You are able to kill it, but it has 2000 HP. If you are able to parry both of the claw attacks in a row the boss will become vulnerable and take 3 times more damage when stunned.
And yeah, about the Zoomer enemy... I only realized that you get hit by it on that transition going back to the starter area after submitting...