I love the idea of controlling the iceberg instead of the ship! reminded me of the adultswim game "giant boulder of death" a little in that regard, along with the whimsical music.
The sploosh sound effect was great too . I will say it took me a couple of tries to stay alive and to actually see a glowing ship to know what it looked like.
I also like the transition between start screen and game.
I think I'd have liked to have seen a counter of how many ships I'd sunk in the end screen - not just amount of time that I've survived for - just so there a reason to go for ships (apart from the satisfying sploosh sound) moreso than just dodging everything.= for a better time.
Overall a very enjoyable and dare-I-say addictive game.