I love all the submissions that played around with the theme in new and interesting ways, and I LOVE how you combined the typical nautical approach with a more abstract mental dive!
The rapid ascent after a dive threw me off at first, but I eventually realized it was a really smart choice; I appreciate the overall speed and responsiveness of the game, especially in selling everything after a run. The quick-sell feature, and the instant ascent when you max out your weight, are both really smart inclusions and are much appreciated.
I like how you used the simple, cutesy aesthetic to your advantage — I definitely had a harrowed look on my face when I reached the last depth level. Kind of reminds me of that old free platformer Eversion, in the best way.
Awesome stuff! Thanks for the fun time!