Let the boy find, collect and dispose of the waste and additionally let him take further measures for the protection of the environment!

Level 0 (Selection Level)
Level 1 (waste)
Level 2 (more and more waste)
Level 3 (light)
Level 4 (smog)
Level 5 (water)
Level 6 (radioactivity)
Level 7 (arson)
Level 8 (CO2-emissions)