Japan's Nikkei share average broke a seven-day winning streak on Wednesday on profit-taking, while Nintendo Co stumbled after a reported delay for Pokemon GO's introduction in Japan.
The Nikkei dropped 0.3 per cent to 16,681.89.
The broader Topix dropped 0.1 per cent to 1,330.75. The JPX-Nikkei Index 400 rose 0.1 per cent to 11,953.84.