It is Perfume's fifth consecutive album to be fully produced, written, composed, and arranged by Japanese musician and Capsule band member Yasutaka Nakata.

[8] The album's fifth track, "STORY", was originally performed at the 2015 SXSW Festival in Austin, Texas; it is a big room house song with "dark" and "industrial" elements.

Erin Smith from Hello Asia noted that the darker elements of the song "aren't quite in sync with the sweet and catchy ditties Perfume are known for, but this direction suits them just as well..."[8] "Sweet Refrain", one of the previously released tracks to receive an album mix, is a four-on-the-floor song which received mixed reviews upon its initial release in 2013.

The album's eighth track, "Baby Face", was described as dance song with "cute" and "sweet" atmospheric elements.

[9] "Tokimeki Lights" is the ninth track, and was the B-side to the group's single "Star Train", also included on the album.

The second disc features the original edit of "Flash", plus the instrumental and a radio show where the members of Perfume discuss the album.

The stand-alone CD and digital cover[11] is a background shot of Perfume's faces, with each member standing and leaning against the image, blocking one of their eyes.

[3] Both the deluxe edition covers features reflected images of the members, placed in front of a blue and white backdrop.

She commended the song's mixture of genres, but said that "As a result of Perfume’s often repetitive songwriting style, the pervasive use of common dance tempos and the fact that Perfume’s songs average on the longer end of radio-friendly pop tracks, the record can get a little predictable and monotonous at times."

[17] The accompanying music video for the single was shot by Kazuaki Seki; it features the group in a museum, where they are portrayed as repeating their actions on loop, with mirror images of themselves appearing throughout.

[21] The accompanying music video for the single was shot by Shimada Daisuke; it features the group in a Chinese market place, dancing to the song.

"Pick Me Up" was praised for its comparisons between the works of Calvin Harris and Avicii, being a prominent mixture of both Eurodance and Japanese pop music.

[32] The accompanying music video for the single was shot by Seki; it features the group watching scenes from their 2015 documentary film, We Are Perfume.

[35] The accompanying music video for the single was shot by Seki; it features the group performing the song in a grey-beige room.

[36] "Flash" has been described as a "party-starter" anthem that was noted by Alex Shenmue of Land of the Rising Sound as the album's most consistent arrangement.

[37] The accompanying music video, included on the bonus DVD/Blu-Ray edition, features the group, and their fans, holding their palms up towards the camera with the song's lyrics on them.