This was great, thanks a lot! I enjoyed it so much that I had to unlock all the fish. The last one seems very strong because it has so much health :D
What I think was especially great is how the game felt really responsive and juicy. It was fun to save up bodies and press spacebar late for one huge explosion. The variety of enemies and playable characters was also impressive. Great job!
I usually want to give some negative feedback as well, but I am having a hard time coming up with something.