@fabula-rasa thanks for the feedback, and glad you enjoyed the game! I didn't put 2 players on the label because I wasn't confident I could make the 2 player experience have the effect I intended and didn't have time for the extra playtesting it would require knowing that games often behave very differently with 2 players than multi-player. I suspect it would be good to shrink the deck a little, maybe something like "Remove all Fusiliers and 1 each of Jelly, Shark, Tuna, SCUBA, Ray, Crab, Snail" along with a 7 card hand size.
Sounds like you got the basic interactions I was hoping for, which is great to hear.
Great feedback on layout, thank you. Definitely wish I'd made those numbers bigger.
(On SCUBA Divers, the table row goes up to 6 because that's how many there are in the game, so the set scores "how many SCUBA Divers you have (up to 6) times how many unique attractions you have, as long as you have at least 2 SCUBA Divers". That row of the table isn't my best work.)