The Legend of Zelda: Tri Force Heroes is out soon, and we're diligently working away on a review to share once we're allowed to share it. Undoubtedly designed for multiplayer, to the extent that the game tries quite hard to discourage you from playing solo, it's an experience that's certainly best enjoyed with friends or online.
Of course, there'll be preferences or occasions where solo play is the only way to go, and so far we've not been been overly pleased with how it works. A notable design choice in the game is that you play with two motionless doppels, requiring you to manually toggle between your three heroes with the touch screen. We said the following about this in our preview for the game.
This is a baffling design choice, which is even more peculiar given the far superior implementation of solo play in Four Swords, in which you could place doppelgangers, they would follow you or you could whistle them so they're next to you in an instant. There's no such option to summon the doppels, making stages a slow - at times ponderous - routine of either walking around as a totem (which isn't always practical) or manually selecting each character to move them on. In some puzzles this works well for relatively slow-paced and thoughtful play, but at other times it's either frustrating or downright prohibitive. For puzzles that require quick timing it can be fiddly, and some boss battles are an exercise in frustration as they've evidently not been designed to accommodate solo play.
In any case, that's an opinion based on early time with the game. Our man Alex Olney has brought together some footage of an early-ish level for you in which you can see the single player swapping mechanic for yourself. Check it out and let us know what you think.