What fps could nintendo make? A game like Garden Warfare? U know nintendo would never make a bloody fps and metroid is an established nintedo ip that hasn't seen its full potential yet. An online mp metroid would fare really well with nintendo fans.
If its first party, it doesnt have to be about realistic violence. Look at Mario Kart, it does what other commercial racers cannot accurately replicate. The whole point of creating a Nintendo game is to create a game that could exist in that fantasy realm. This is what Nintendo has over all the other brands. All of their characters can exist in one place, which is why Mario Party, Brawl and Kart sell so well.