The album's interior artwork features ominous, psychedelic, futuristic, and apocalyptic imagery. The environments resemble a combination of futuristic and old-fashioned aesthetics. The second trend is the inverse of the first&colon; futuristic retro. It matched the suit and it gives a kind of futuristic vibe. The film "Tron" served as inspiration for the game's futuristic, neon aesthetic. It is home to a range of futuristic buildings, including many skyscrapers. "Zooropa" is set amongst neon signs of a brightly lit futuristic city. The dashboard design was also changed, to a less futuristic but still sporting look. Science-fiction novels make liberal use of a futuristic Thames. Their music is heavily themed around scientific, philosophical, futuristic and astronomical topics. Heinlein's depiction of a futuristic military was also influential. Their music is characterised by a fusion of Beatlesque pop, classical arrangements and futuristic iconography. Although it won early acclaim for its comfort, power and futuristic design, sales were slow. It looked like something you would see in a futuristic movie. There were also technical glitches with the futuristic mechanical props.