Tokyomango - a site that offers everything one might want to know about the "birth city of Godzilla, Gundam, all-you-can-eat shabu shabu and panty vending machines" - recently featured this great photo of its editor rocking out to a dog walking video game.
This is arguably the most challenging arcade game I have ever played. Much more so than Beatmania or DDR (j/k, I so don't play DDR) or Street Fighter II. Basically you have to walk on a treadmill while holding this white dog's leash. Walk too fast, and he'll get tired. Walk too slow, and he'll get bored. And when obstacles like the neighborhood bully dog or a oncoming car shows up on the screen, you better steer clear! If you mess up, your dog dies.
While I know a couple of animal lovers that would likely go hog wild over the possible dog fatality, I love that this isn't a "shoot 'em up" or dance kind of game. Okay, so I just want to say I walked my dog in an arcade. Can you blame me?