The Wii has pummeled its rivals in a head-to-head battle in next-generation video game consoles involving Sony's PlayStation 3, which has been plagued with production problems, and Microsoft's Xbox 360.

Iwata refused to disclose the monthly production capacity for the Wii, and said it was too early to say by how much the production was being raised.

But he said efforts were underway to increase production, and more machines will get delivered to stores around the world.

"We will do our best to offer the machine for those who are waiting," he said at a Tokyo hall.

The Wii's motion-sensitive remote control wand has made it hit even with people unaccustomed to playing video games. It faced some minor problems early on with its wand, which flew out of the hands of some overzealous players, snapping the strap and at times crashing into TVs. But that hasn't dented profits, and the console is still flying off store shelves.