Great game! Healtbars or signs of ship destruction may be useful. And the boss is moving just a bit too fast. One time I followed it for two minutes doing nothing else, just to find it. Maybe it really should move towards the player once they gain a lot of fish. As if the crew noticed a shoal of fish and tried trawling it. And lose interest after there is almost none of the fish left, giving player an opportunity to increase the shoal again.
Loved the music and animations!