Daisuki Dekkara Zettai ni Yurusanai (Sayashi Riho, Oda Sakura)
Watashi no Dekkai Hana - 1:30 Preview (Tanaka Reina, Iikubo Haruna, Ishida Ayumi)
Aishuu Romantic (Michishige Sayumi, Fukumura Mizuki)
Nani wa Tomo Are! - 1:30 second preview (Ikuta Erina, Suzuki Kanon, Sato Masaki, Kudo Haruka)
Source: 1, 2, 3, 4, 5
Aishuu Romantic is flawless. Happy Daisakusen is nice (it sounds kind of like a more modern version of something they would have done years ago). Daisuki Dakkara duet could have been really good if it was a better voice pairing. On the fence about the other two.