Once your boats have been destroyed by the Japanese, go straight to the beach. You should go a little to the right and see a little crater, jump in it. Then keep moving left and jump into another water crater, and then there will be one without water in it, Jump into that one too. Then all the way on the left side of the beach and jump into a huge crater filled with water ( it should be the forth and last crater you should jump into. ) WAIT IN THE CRATER FOR ABOUT 10 SECONDS!!!! You should here a rumbling noise and then see four bear figures come out of the ground. If you go up to one of them, they will be holding a Ray Gun!