released on September 7, 2016.
| Saikou kayo (Type A) [CD+DVD] Catalog: UPCH-80442 | 1. | Saikou kayo (最高かよ) | 4:35 | 2. | Soramimi Rock (空耳ロック) | 5:00 | 3. | Yume Hitotsu (夢ひとつ) | 4:44 | 4. | Saikou kayo (instrumental) (最高かよ [instrumental]) | 4:35 | 5. | Soramimi Rock (instrumental) (空耳ロック [instrumental]) | 5:00 | 6. | Yume Hitotsu (instrumental) (夢ひとつ [instrumental]) | 4:46 |
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| Saikou kayo (Type B) [CD+DVD] Catalog: UPCH-80443 | 1. | Saikou kayo (最高かよ) | 4:35 | 2. | Soramimi Rock (空耳ロック) | 5:00 | 3. | Yozora no tsuki wo Nomikomou (夜空の月を飲み込もう) | 3:56 | 4. | Saikou kayo (instrumental) (最高かよ [instrumental]) | 4:35 | 5. | Soramimi Rock (instrumental) (空耳ロック [instrumental]) | 5:00 | 6. | Yozora no tsuki wo Nomikomou (instrumental) (夜空の月を飲み込もう [instrumental]) | 3:59 |
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| Saikou kayo (Type C) [CD+DVD] Catalog: UPCH-80444 | 1. | Saikou kayo (最高かよ) | 4:35 | 2. | Soramimi Rock (空耳ロック) | 5:00 | 3. | Go Bananas! | 4:09 | 4. | Saikou kayo (instrumental) (最高かよ [instrumental]) | 4:35 | 5. | Soramimi Rock (instrumental) (空耳ロック [instrumental]) | 5:00 | 6. | Go Bananas! (instrumental) (Go Bananas! [instrumental]) | 4:12 |
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