I've suddenly become very interested in physical games. Not like board games, but like these.
There are a lot of amazing things you can do with physical games that you can't do with a genericized controller, from the "snap" of the box closing itself when you lose to the feel of moving your body in the game's physical space. Even something as simple as those tiltable wooden "marble labyrinths" have a more immersive feel to them than their virtual variants.
It's fun to think of the cool things you could make. For example, that karate-chop game looks pretty amenable to modular design. You could have a lot of different modules and, as the game progresses, it demands that you put more modules on the base unit, to have more complex interactions.
But, being that my skills at actual electronics are nonexistent, I have to stay pretty much in the software world. This got me thinking about how you can add that kind of depth, sharpness, and immersiveness to a game using a much more generic controller (for example, keyboard or 360 controller).
Some games have done a pretty good job: Katamari Damacy probably reigns supreme at this, although I suppose the Kinect has bred some challengers. But I'd love to hear about others. What games can you think of that have interesting and immersive controls? How would you implement such a thing?