How about something to give you character a bit more umph when they are running from the gunmen the pissed off in Shadowrun?
Cost: 3 karma per rating (Max Rating 3)
Maybe you were on the Cross Country team in high school. Maybe you put a little time in at the Y to lose a few pounds. Or, maybe you just got really good at beating feet when you were a kid so you didn’t bet pounded when you were in high school. Either way, you run fast. When determining your run or walk speed, your agility score is consider one higher for each level of Speed Demon you have.