I like how the movement of the group of fishe is done, it feels controllable yet also creates situations that are out of my control and unexpected. An interesting dynamic is created when I need to send out fish to rescue more, so I risk leaving myself with less fish than what I had at the start. One issue I found was that it was possible to lose all fish and become unable to rescue more. I also wish there is a score that counts how many fish I have when I finish the levels.