I like to think there are two possible things running through his head. The first is "A new Mario game using this would be amazing". The second being "I hope our legal team doesn't sue into oblivion the first people to come up with a Starfox mod for EVE Valkyrie".
For reference that's Bill Trinen on the right, while JC and Jeff from Nintendo's Treehouse are in the back.
Callum Underwood [Twitter]