Looks interesting. Even more interesting is the fact that it's another multiplayer shooter from Nintendo. Though, I'm getting phantom hand cramps from my brief experience with MP: Hunters' single player mode. I hope they can figure out a good control scheme that doesn't leave your off hand cramped or a nub-shaped depression in your right thumb.
I really, really hope this wasn't what Retro was rumored to reveal. No offense to this game and its creators, but it would be a massive tease if the legendary Metroid Prime dev's only project since Tropical Freeze was a sports game reminiscent of a Prime spinoff they didn't work on (and was kinda lackluster for single player). Please, tell me that if Retro did have anything to do with this, that it lead to a new Metroid Prime.