Enjoyment: I had fun seeing what else I can discover. The Upgrades could be a bit more flashy to get a better understanding of what areas you can now access. I guess got an upgrade and went somewhere else to see how far i can go.
Gameplay: Very basic gameplay, encourages exploring the stage. I would have loved if the stage was not only left/right, but also down, since this is what makes diving so special.
Innovation: Diving genre with a more relaxing and explorative character. Nothing ground-breaking but the formula works
Theme: I think except for the weirdly shaped worms the place was not really that strange. Marine life is a wonderful place but you could have gone for the more exotic creatures of the depths
Visuals: I was missing some cues on where i was on the map. Finding those fish in a complete monocolor blue is kinda tedious. but when you have the gradient to dark waters if became a lot easier and more fun to navigate.
Audio: nice soundtrack really enjoyable to listen to!