The company updates its user agreement to say it can render a Nintendo console 'unusable' if any piracy or tampering is detected.

Japanese video-game maker Nintendo has reported a 43% decline in profit for the fiscal year through March, but promised a turnaround as its Switch console upgrade goes on sale in June.

Furukawa said that Nintendo's goal is make the Switch 2 very popular. "The launch of Switch 2 and the early spread of the hardware are our top priorities," he said. With that will come an increase in marketing expenses, which Nintendo expects to make by selling more software (games).