There should be two hats from the treasure map. One for finding the map, and the other for not. That way you have even more people fishing to get both hats, and its also not as sad when you've spent 6 hours fishing and find a map that you have to spend another 6 just to get another shot at it (assuming the map isn't a one time thing).
I think that if you have a whale you should add a giant squid to the fishing as well. As squid is part of the diet of many species of penguins in Antarctica, a giant squid translates into a feast.
Feedback: For the achievements it is impossible to get here be dragons, because the time interval between turning 17 and the end of the game is not enough to max out.
Just the mere fact that this game is FREE and it has SO many additional improvements from the last game means it gets a 5/5 from me. The premise to start with is awesome, but all the changes really make for a more time-consuming and enjoyable game. The debate between Sonny and Gemcraft is silly. Different games, different expectations. Don't rate a game 1/5 just because you want another to rate higher- rate a game on the merits, and on the effort involved.
Goblins will one day rule the world lol.
Just defeated the first level with roughly 50 goblins all spawning. So much fun to watch your goblin army get torn down only to rise up immediately.