Nintendo said on Tuesday that alliances with other companies may be necessary, a day after the game maker reported its second straight fall in annual profit and said it would launch a successor to its aging Wii console.

I now regret that we didn't tie up with someone outside the company to market the Wii. If we had done that, the fate of the Wii might have been different, Chief Executive Satoru Iwata said at a conference for investors and analysts.

Now I am aware that we should not rely too much on ourselves. You will see what I mean by this when we market the 3DS and the Wii in the future.

(Reporting by Junko Fujita; Editing by Michael Watson)

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