Race across London as a carbon-dioxide hater of olympic proportions.
Instructions :
Get your athelete (William or Stefanie) across London 2012 in time for the big games. Collect carbon and methane orbs along the way, and grab clean-energy power-ups, too. This will neutralize the orbs' unfriendly environmental effects, reducing your carbon footprint. Don't forget: this is a race. Beat the clock to win!
Left/Right = Run
Up = Jump