One of the greatest miracles in modern medicine is happening right before our eyes: Germs are finally learning to play by the rules! However, they follow those rules to a T (cell?), so you've got to figure out how to rearrange the germs in the Petri Lab, a rule-rearranging logic puzzler by Grace Avery. Transform the germs in the Petri dish to match the target at the top by activating the germs' specific rulesets.