His main foe is Reverso, a parody of Bizarro. Considered a classic of Art Deco design, the Reverso is still manufactured today. The Reverso Context mobile app has a 4.7 ranking on the Google Play app store. "Reverso" is the longest of the seven pieces. Meanwhile, the Reverso drug was successful in turning thousands of American soldiers against their superiors. Reverso is a website specializing in online translation aids and language services. In 2016 Reverso acquired Fleex, a service for learning English via subtitled movies. Reverso answered on Twitter that the controversial content would be removed in one month's time. "Reverso" features a prominent part for the harp and, like "Extenso", rich string melodies.