Over the weekend, my wife bought a new treadmill. She set it up downstairs near my gaming area. Anyway, I was playing the ol' Genesis when I thought, "Hey, how about I play a game of Sonic while I run on the treadmill? And to make it interesting, I can only stop if I get through a level!"

So I played through Green Hill Zone in a few minutes. Was a bit short of breath, but doin' fine. Then I began playing the Marble Zone. You know, the "trudge slowly through the underground ruins" levels. At the 10-minute mark, I had to stop before my heart exploded.

So, other than the games *designed* to be interactive (Samba De Amigo; Dance Dance WTF; etc.), what games did YOU turn into an impromptu exercise in physical flailing about?