In the early part of the game, kill the blue enemies until one of them drops bombs and you have 10-20 rupees total. Then from the starting location, go to the screen west of you and blast a hole in the wall above the middle of the rows of rocks. It is a gambling hall. Save the game, select one of the rupees, and gamble. If you win, save the game. If you lose, retry and restart.

From the starting point, move right four times, and kill everything. Keep going through the beach, killing everything in your path. Once you get to the part with the stairs that lead up to the warp point, go left. Keep going left until you reach the corner of the lake with all the "flowers" flying around. Then, turn back and go back to the part with the stairs to the warp point. Go down and make your way back to the starting point. Repeat these steps until you have 255 rupees. Note: It is strongly recommended that you have the Magic Shield, and the White Sword may also help. This is a good way to save up rupees for the Blue Ring (costs 250 rupees), and you can only carry 255.