I was really confused what this game wanted me to do. At first I fell off the boat and sank to the bottom of the ocean. Then on restarting I managed to get in the boat and sailed past the little glowing marker. There didn't seem to be anything out there in the world, so I came back and hit the marker to discover it introduced me to a fish. At that point, I understood, but it took me a bit to get there.
I think the pixel screen effect is cool, but it at the same time makes it difficult to see what's going on. When you're a bit far from the glowing circles, they're almost impossible to see due to the pixel effect.
Besides finding the fish and some funny captions, I'm not sure if there was more to see.