I don't have access to a Windows machine, but the visuals look nice!

I enjoyed this quite a bit actually! The visuals were really good, although the background sand might be a little overwhelming to the eyes the rest was really pretty, the colors, animation, everything. The gameplay was pretty good too, it had a sense of satisfaction (although i broke the game I believe by pressing alt-enter and it showed me all the weapons :P) buying things had a sense of strategy, higher rate of fire, slower rate, wider range, it was good.  The sounds were good generally, the... turrets I guess had a good satisfying sound for each of them, the only problem was the shark death sound, that seemed a bit weird and buggy, and the music was a little repetitive. And for the story, not much of it but, the sand dollars made me laugh so I atleast put 2 stars :P. I believe i survived until wave 22, began to be quite hard hehe.

Trying to extract .zip says it's empty.

EDIT: It works now.  Made it to wave 30 something. It said "way to go, you beat the developer at her own game." Nice! I like the ocean theme. The octopus squirt on the sharks is cool, and the shark disintegrating is a nice touch. There wasn't an inch left to place anything. Got to figure out which defensive creature is the best bang for the buck to probably make it any further haha.