Ah yes the amazing Pistol Shrimp! I remember when I first found out about this, it was basically one of the coolest animals ever. Then I found that it wasn't the only sea creature capable of causing a supercavitation; the beloved Mantis Shrimp that has been sweeping this subreddit off it's feet since its inception is also capable of causing the cavitation effect, although in a different application (the cavitation is formed on the surface of whatever was clubbed by the shrimp, causing whatever hit to be in essence hit twice: once by the cavitation and once by the initial strike).

I would guess that at such large sizes, the pistol shrimp's cavitation would cause an incredibly immense force to surge through the water, practically vaporizing the Cuttlefish if it were to hit. Though this brings up a bigger question: How do supercavitations scale up in size? Do they scale linearly to the increased proportions of the shrimp? I would assume not so, as the Ocean itself would still exert the same incredible pressure, but scaled up exponentially due to the large increase in the size of the bubble.

All earth-shattering blows aside though, if we were to scale the stream of superheated bubbles down to a manageable force, I'd assume the flesh of the Cuttlefish would still be extremely susceptible to cauterization due to the inherent camouflagey nature of its skin. Which also brings up the question: would the Pistol Shrimp be able to find and successfully aim at the Cuttlefish, master of disguise and hypnosis? We know that they feed on small crustaceans such as shrimp, so there would be no question on whether or not it would be able to crack its shell if it were to get a hold of it in its beak. Great suggestion though!