Very immersive game! You really manage to set the deep sea atmosphere! Good job!
The silence is so oppressive that in the first time I found the right fish I got scared by the victory music 😅
About the gameplay: Escaping from the chasing fish is a bit frustrating once we have to turn off the light in exchange to see nothing in our way. A better approach would be the enemy itself emanates light in a periodic way to indicates his position. This way, we can see our path to continue and see the enemy at the same time.
Also, adding checkpoints would be a nice feature considering the length and the difficult of the levels
Overall, a nice game! Congrats!