Iwata has resumed his regular work duties as Nintendo president

Nintendo president Satoru Iwata says he has recovered well enough from his surgery in June - to remove a tumour in his bile duct - to enable his return to regular work duties.

The exec announced his return as he presented Nintendo's quarterly and first-half financial results. He said that though he had lost weight, he was now feeling healthier.

Improved Wii U and 3DS sales helped Nintendo post a quarterly operating profit and expects momentum for Wii U to build over the holiday season.