"DUMBASS HUMAN, TURN THOSE SUBMARINE ENGINES THE DOWN! I'M TRYING TO SLEEP!"
(he doesn't actually say this)

During a submarine expedition you find a giant purple anthropomorphic octopus that does not take kindly to the noise your submarine engines make in his domain. Thus, he tries to crush the submarine with his inhumanely strong arms and tentacles.

Impressive body that lad has... about ten thousand years old and still ripped as .

Octopus and/or pressure compression experts GET THE OUT OF MY COMMENTS!!!!!!

Image credits go to MarlonCores (image here)