Nazi symbol? It's known as a swastika, and has been used by Indians (India) and Native Americans long before WW1 or WW2, not to mention the Nazi's tilted it 45 degrees to the side...
This is a nice game anyway.
The bobbing "stores" cycle between lures and rods(rods improve distance), also, the bomb lures are only for the sharks.. which give a ton of "money" when "bombed"