My days all follow much the same pattern. They are structured and typical.
Game music has a purpose and it does incorporate sound effects.
Controller is so intuitive, even your mum can play.
To create a new standard, you have to be up for that challenge and really enjoy it.
Nintendo's philosophy is never to go the easy path; it's always to challenge ourselves and try to do something new.
When I'm working on games I don't think necessarily about what the end benefit of the game is going to be. Typically I'm trying to think of: "What can I do that is going to find new ways to entertain and surprise people."