Ho man, I went in the game blind and I thought I was just going to gather minerals. I was REALLY concerned when I went back to refill my oxygen and I saw red lights moving on the map. I was thinking "Wtf is this??? 👀". When I came close to it and I saw the HUGE fish, I was spooked!... but then I realized that the fish couldn't hit me which was a bit anti-climatic. Don't get me wrong, I've seen your to-do list and it's great that you were able to do this much! I also like the mechanism to gather minerals! It made me think about the system to attack in Undertale!
Overall, great work! Keep up the work!