Nintendo's six months ending September 30 saw the company suffer a 35 percent drop in revenue and a 59 percent cut in profit.
Revenue fell from to 548.06 billion yen from 836.88 billion in the same period last year.
Operating profit was down from 252.18 billion yen in the first half of 2008 to 104.36 billion yen this year.
The company is now forecasting 1.5 trillion yen sales for its March year-end. Projected Wii sales have been moved down to 20 million units from 26 million, with Wii software now expected to be 180 million, down from 220 million.
The full-year DS hardware estimate has remained the same at 30 million, but DS software sales are now expected to be 150 million, not 180 million.
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