Otamatone 100 day Challenge （66/100）：The Final Countdown / Europe
The challenge is whether Otamatone will improve after 100 days. It's the 66th da ...
Otamatone 100 day Challenge （65/100）：Moon River / Breakfast at Tiffany’s
The challenge is whether Otamatone will improve after 100 days. It's the 63th da ...
Otamatone 100 day Challenge （64/100）：I Will Always Love You / Whitney Houston
The challenge is whether Otamatone will improve after 100 days. It's the 64th da ...
Otamatone 100 day Challenge （63/100）：Can’t Take My Eyes Off You / 君の瞳に恋してる / 目不转睛爱上你
The challenge is whether Otamatone will improve after 100 days. It's the 63th da ...
Otamatone 100 day Challenge （62/100）：OB-LA-DI, OB-LA-DA[The Beatles] / オブラディ・オブラダ[ビートルズ]
The challenge is whether Otamatone will improve after 100 days. It's the 62th da ...
Otamatone 100 day Challenge （61/100）：Din Don Dan / Ryu feat. Mayumi Morinaga
The challenge is whether Otamatone will improve after 100 days. It's the 61th da ...
Otamatone 100 day Challenge （60/100）：Lambada / Kaoma
The challenge is whether Otamatone will improve after 100 days. It's the 60th da ...
Otamatone 100 day Challenge （59/100）：Attach on Titan / 進撃の巨人 紅蓮の弓矢 / 进击的巨人
The challenge is whether Otamatone will improve after 100 days. It's the 59th da ...
Otamatone 100 day Challenge （58/100）：The Galaxy Express 999[Godaigo] / 銀河鉄道999[ゴダイゴ]
The challenge is whether Otamatone will improve after 100 days. It's the 58th da ...
Otamatone 100 day Challenge （57/100）：Lolipop / The Chordettes
The challenge is whether Otamatone will improve after 100 days. It's the 57th da ...