Help Scratch cat jump to the Scenedesmus algae to filter the polluted water. Watch out for sludge along the way! Use right, left, and up arrows to move Scratch cat.
I was inspired by an article in Wired Magazine about Scenedesmus algae being used to filter pollution and create biofuel. https://www.wired.com/2011/02/using-algae-to-clean-wastewater-make-fuel/
