Interesting game.
1. The tutorial was a bit confusing at first. 2. After completing the tutorial, the game would not let me move on. It would show me the board to play on next then kick me back to the menu right away.
1. Losing a life from spawning right next to a big fish when a level starts is a bit unfair. 2. Perhaps the fish you eat could be in the black section. It is distracting to have them where other fish swim.
I really like this game a lot. The game has froze on me a couple times when I transfer to the next level. I would like better reaction time when I hold down the left and right arrow keys. If I just hold one down, it seems to studder a bit. The coins are confusing at first. During game play coins are collected for points, but then when choosing power-ups, 1 coin is awarded per level completed.