It's hard, but not because of the player's lack of skill figuring out puzzles. It's hard because you can't figure our where to click, so it becomes a clickfest.
I caught that weird blue fish, and it didn't appear in my fishpedia!
D:
I feel like, if I was lucky enough to catch the one fish you are not supposed to be able to catch, I should at least find out what it is!
After your ship has two rocket launchers, hold down space and click outside the game.
It will act as if you keep holding down space, and you will win easily.