Bikini Bottom is having some serious bacteria spills going on, but SpongeBob can help clean it up. Help him by clicking on bacteria spill to drop a sponge and let it soak the bacteria. SpongeBob can only drop 4 sponges at a time. Let the sponges soak up the bacteria spills and then click on the sponges to recollect.
Once he has a full green body, go to the wringer to clean him out. Repeat the steps to gather filtered water to pass the level. Sometimes Patrick is nearby and running into him will slow you down. You can click on the mirror to distract him. There is a total of 10 levels. If you haven't cleaned enough bacteria spills when time is up or beat level 10, the game ends.