Sea of Stars - Ultimate Area Fight Crab - No equipment

So i think the Gold arena fight might be impossible w/ no equipment as you take way too much damage and can't deal enough before your overwhelmed.
This fight was pretty interesting, take out the left chest to stop healing and you can ignore the right chest as it does little damage. The boss' squash attack deals so much damage, that if I didn't put the reapers accessory on the fight would of taken twice as long at least. I'd be interested in trying it again, but after looking at the length of this video i'm hesitant to try it.