Nikkei slips, pressured by strong yen and policy uncertainty
* Nintendo outperforms on Mario game hopes
* Speech by BOJ Nakaso awaited later in the session
TOKYO, Sept 8 (Reuters) - Japan's Nikkei share average languished on Thursday, weighed down by a stronger yen and plagued by uncertainty about the outlook for Japanese monetary policy.
The Nikkei was down 0.2 percent at 16,971.05 by midday.
"The market's seeing many sell orders on the back of a drop in U.S. markets, and a lack of any news to drive buying in Tokyo," said Hiroki Allen, chief representative of Superfund Japan in Tokyo.
"Even the announcement of the new iPhone 7 is not enough to encourage the usual buying of Apple's suppliers in the Japan market," Allen said.
The Dow Jones industrial average and the S&P 500 both slipped overnight, though the Nasdaq Composite nudged up to a new closing high after Apple unveiled an iPhone 7 with high-resolution cameras and no headphone jack at its annual launch event on Wednesday.
Apple's biggest surprise was the debut of a three-decade-old Nintendo game franchise, Super Mario Bros, on the smartphone. The announcement of the new game, Super Mario Run, powered Nintendo's shares up 13 percent by midday in Tokyo trading, on hopes of another mobile gaming hit for the Japanese company following the wildly popular Pokemon Go.
Shares of online gaming firm DeNA Co Ltd, which teams up with Nintendo to develop and operate gaming apps, jumped 13 percent by midday after hitting five-year highs. Continuación...