Egao no Riyū./GIRIGIRI

Egao no Riyū./GIRIGIRI (笑顔の理由。／ＧＩＲＩＧＩＲＩ, Egao no Riyū./GIRIGIRI^? lit. Reason for the Smile./Borderline) is a single release by Sonar Pocket containing the 1st opening theme of the World Trigger anime series. The single was released in 4 versions, 2 Limited CD+DVD Editions and 2 Regular CD Only Editions.

TracklistEdit

Limited Edition A CD TracklistEdit

1. Egao no Riyū. (笑顔の理由。)
2. GIRIGIRI
3. Egao no Riyū. (instrumental) (笑顔の理由。)
4. GIRIGIRI (instrumental)

Limited Edition A DVD TracklistEdit

1. Egao no Riyū. Music Video (笑顔の理由。)
2. Egao no Riyū. Music Video Making and Off Shoot (笑顔の理由。 MVメイキング&オフショット)

Limited Edition B CD TracklistEdit

1. GIRIGIRI
2. Egao no Riyū. (笑顔の理由。)
3. GIRIGIRI (TV size)
4. GIRIGIRI (instrumental)
5. Egao no Riyū. (instrumental) (笑顔の理由。)

Limited Edition B DVD TracklistEdit

1. GIRIGIRI Music Video
2. GIRIGIRI Music Video Making and Off Shoot (GIRIGIRI MVメイキング&オフショット)

Regular Edition AEdit

1. Egao no Riyū. (笑顔の理由。)
2. GIRIGIRI
3. Tanoshimase Tai!!! (タノシマセ隊！！！)
4. Egao no Riyū. (instrumental) (笑顔の理由。)
5. GIRIGIRI (instrumental)

Regular Edition BEdit

1. GIRIGIRI
2. Egao no Riyū. (笑顔の理由。)
3. Tanoshimase Tai!!! (タノシマセ隊！！！)
4. GIRIGIRI (TV size)
5. GIRIGIRI (instrumental)
6. Egao no Riyū. (instrumental) (笑顔の理由。)