I really enjoyed this game it feels quite polished and the UI is very nice. I feel as though a tutorial would have helped as I had no idea what I needed to collect rockets and at first was trying to shoot all the ammo pickups and avoid them until I learnt what they were thus wasting all my ammo, so my first couple of tries could have gone better if I knew what I was trying to do.
The water effects that were used were a nice touch and didn't distort the image too much but I did find that it made it slightly more difficult to aim due to my reticule being wobbly I also thought It was a little jarring being able to go under the floor and was even punished for it by receiving damage however I thought that nearly all of the collisions were very good.
The sound effects were nice and I liked how the difficulty ramped up the longer you survived without getting hit. Your main menu was also very polished. I wished that you had more ammo to shoot with or the fire rate was reduced somewhat as I was spending all my ammo very quickly without even realising. The scoring system was also a nice touch and it felt like I had a reason to keep going so I could the highest scored. However I don't know if there is an end to this game or if its an endless looping game but regardless very good game. Good job team.