Switch is definitely Blue Ocean.
Forget the word "casual", it doesn't apply, that was fake hyperbole from detractors. Casual gamers existed before, they bought PS2s and whatnot.The real term is "new gamers". Do you honestly think making these new gamers flow into Mario wasn't a plan?Why do you think they made Super Mario Run for iOS?
It's definitely Blue Ocean. Not only from a differenciation lense, but certainly in terms of audience. So you can say it's disruptive too..







