Money
From begining, go left. Bomb wall and open gambling place. Do the "Restart screen" cheat (up and select at Item Select) and choose save.
Now, from the begining, go to the place and play. If you win, save. If you lose, choose retry.
Before you know it, you will have 255 rupees....
We have more cheats and tips for this game here, Classic NES Series: The Legend of Zelda cheats
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