Eiji Aonuma is clearly a very talented, motivated developer, qualities necessary when fulfilling the role of series producer for The Legend of Zelda. He also has a brilliantly playful side, as he demonstrated when he performed a cool Cucco dance at E3 2014.
He approached a recent live stream of The Legend of Zelda: Tri Force Heroes in great spirits, too, dressing up as Link for the occasion. He's only really on camera at the start and end, but there's loads of game footage in between (albeit in Japanese), including some levels from fairly late on in the campaign.
It's worth watching it you have a bit of spare time and interest in the upcoming release. Check it out!