332/365: Smash :)
After all those Amiibo, you need to see what I'm playing with them, right?
The game is Super Smash Bros, and as much as it was very confusing at first, it's very addictive after the first few games. It's an odd game because it's a brawler kind of game, but not one where you start with a full health bar and lose once your health bar is empty. Rather, you start with no damage, and whenever you take damage your damage percentage goes up. In theory, you can have infinite damage (well, it's capped at 999%), but the more damage you have, the further you're pushed when you take more damage. And you lose the game once you're thrown or smashed out of the gaming area.
There's more to it, it takes a few dozen plays to understand the basics - at least it did for me. And then a whole world of combos and skill-based play opened up. Too bad I'm not particularly skilled, but I'm slowly catching up to the leader at our office noon sessions