Tokyo: Japanese video game giant Nintendo said Wednesday its first-half net profit soared as a sharply weaker yen boosted its bottom line and offset slowing sales.

The Kyoto-based company earned 14.3 billion yen (Dh485 million, $132 million) between April and September, way up from 600 million yen a year ago, despite sales falling 12.8 per cent to 171.4 billion yen on lacklustre demand for its 3DS games system. Nintendo kept its full-year 20 billion yen profit forecast unchanged, and said its operating loss in the first half shrank to 215 million yen, from 23.3 billion yen a year earlier.