I think I miscommunicated a little--I really like the difficulty level actually! Beating it the first try would be boring. I was just saying:
1. I wish there was a way to see how far I got after I lose (I wasn't paying attention during gameplay).
2. It would be interesting to see how the game felt with more oxygen, but with a more fragile hull. I would expect it to make the pace slower but with a similar difficulty level, which might make tension higher (but I don't know that for sure, it might be less fun). Moving slower could also force you to ration your sonar more.
Thanks for listening and thanks for making a super cool game!