Congrats on finishing your jam game!
A visual feast! I loved all the fish and the little environmental hazards. The music was the right amount of arcade-y without being distracting or overwhelming. At the start, I was a little apprehensive that the indicator for the correct fish was too far off screen, but you did a really good thing to make those fish flash when they were about to change. That's a huge win for the design.
On the flip side, I felt there were too many times where the fish type was a big one and there just weren't any on screen. Fish move so slowly that I mostly found myself sitting still and waiting which didn't feel great. Could you retheme the player as a shark or something and make them constantly move? That might add an extra element to keep the player engaged when they're dodging instead of scoring.
I think I encountered a "bug" in which the target fish type changed to the same fish again. Not the end of the world, but something to look out for when changing between random results!
Overall, neat little game. I enjoyed my time with it! Keep making games!