【PROJECT SEKAI】ハッピーシンセサイザ (Happy Synthesizer) -『MORE MORE JUMP!』『KAN/ROM/ENG』 kuro_② 1 year ago Play Download
Hatsune Miku: Project Mirai DX - Happy Synthesizer 4K 60FPS A Useless Channel 6 years ago Play Download
Cosmic Princess Kaguya! Insert Song - Happy Synthesizer(ハッピーシンセサイザ ) with Kan/Rom/En RhythmRefuge 5 months ago Play Download
[MMD] Happy Synthesizer (mirrored dance practice ver.) - MORE MORE JUMP! aria 3 years ago Play Download
'Happy Synthesizer' (Vocaloid) 🍓 English Cover by Lizz Robinett Lizz Robinett 14 years ago Play Download
