I love this! This gives me ecco the dolphin, subtanica and scanner sobre vibes. I dont have any real compaints other then i can swim under the map is a squeeze between the invisible wall and the floor. other then being able to go out of bounds, this was cute! You can probably make this into a nice mobile or steam game with some polish! I wish you luck on your dev journey! Also i love the title card and music! It's amazing to pull off a 3d game by yourself like that. hope you consider polishing this concept someday