I got to the Death Beach level and.... whoa... I'm a little bit tired (my brain is lol) xD but it's not that I became bored, it's just like every game, when you play it for some time it tires you.... you know... but, that's a good game you got there =)
It's really outstanding =P ^^
That Harpoon Mastery is quite hard xP, and that's what makes your game interesting, as well as the location and the golden fish...
Good luck with your plans xP, so you can bless us with another game of yours lol =P