Otamatone 100 day Challenge （70/100）： Up Where We Belong[An Officer and a Gentleman] / 愛と青春の旅立ち
The challenge is whether Otamatone will improve after 100 days. It's the 70th da ...
Otamatone 100 day Challenge （73/100）：Sound Of Silence / SIMON&GARFUNKEL
The challenge is whether Otamatone will improve after 100 days. It's the 73th da ...
Otamatone 100 day Challenge （72/100）：BE MY BABY / THE RONETTES
The challenge is whether Otamatone will improve after 100 days. It's the 71th da ...
Otamatone 100 day Challenge （71/100）：AIR [Tori no Uta] / 鳥の詩
The challenge is whether Otamatone will improve after 100 days. It's the 71th da ...
Otamatone 100 day Challenge （69/100）：DETECTIVE CONAN / 名探偵コナン メインテーマ / 柯南
The challenge is whether Otamatone will improve after 100 days. It's the 69th da ...
Otamatone 100 day Challenge （68/100）：The Cruel Angel’s Thesis / 残酷な天使のテーゼ
The challenge is whether Otamatone will improve after 100 days. It's the 68th da ...
Otamatone 100 day Challenge （67/100）：Imagine / John Lennon
The challenge is whether Otamatone will improve after 100 days. It's the 67th da ...
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 ...