Help Rollie the robot power the city! Everyone is currently using only greenhouse gases, but no worries, Rollie will help! Plant trees by going to the orchard (by pressing the arrow) this is where Rollie makes his money, so be sure to plant a lot. Use arrow keys to move Rollie. Smoke will appear sometimes, but will appear less and less with more energy. Rollie is a special robot, though. Drive over to pick up this smoke, and he will convert it back to oxygen! You can also click the book on the left to read more about alternative energy. You will receive a prize if you finish reading it!
Original project
