Select any game scenario in these retro worlds to play while you work out. You steer your onscreen player and control your speed using the hardware speed sensor and hand buttons (available at clipfit.net). The faster you work out, the faster your player races. Score points for dodging road hazards, discovering bonus road surprises, and even knocking over competitors. The ClipFit app will also keep track of how much time you exercised each week to encourage you to reach your goal.