The backdrop is really nice it ties to the whole idea of the game and I like the animation that occurs when one of the ninja star hits you.
I like the water effect it has on the backdrop. I also like the blur the title has tieing back to the theme of being a fish underwater.
Cover Page looks great and I like contrast between black, red and a stroke of white. I like the movement of your Idle. The game is very well put together.
I find the figures in the back cheering very interesting and the attack function is very quick and nicely done.
The graphics created for your game are very nice and detailed.