This was a very enjoyable game! I was lost at this point below the reef, though. So that IS Level 2 after all. The music was wonderful. Yeah, this isn't meant to be scientifically accurate. This is still pretty innovative for a game here.
It became more about going into a dead fish's body. Wait, was that its whole body? It was certainly interesting to see these graphics. The enemies were fun to kill too. I'd still need to see a walkthrough at some point.