The Legend of Zelda: The Wind Waker -
The amount of rupees that each item sells for is a bit random. However there are strategies to assure that Link comes away with the winning bid. During the auction, there is a meter at the bottom of the screen. It moves slowly, but you can tap 'A' to speed it up. Once the meter is full, Link can submit a bid amount. The trick is not too bid too early in the auction. The auction runs for 1 full minute and there will two notes stating that the auction is almost over, followed by a 5-second warning.