Hydra (From "Cytus II")
Akira Complex, James Landino
HYDRA
MYTH & ROID
Hydra
James Landino, Akira Complex
Hydra
F-777
Hydrate
Skrillex, Flowdan, BEAM, Peekaboo
HYDRA(OVERLORD Ⅱ ED) 圈9.ver（Cover MYTH & ROID）
圈9
Hydra
Covet
Hydra（Cover MYTH & ROID）
Uncle周
HYDRA
四六時Shirokuji
HYDRA
狐妖Mikan
Paradise (What about Us)
Within Temptation, Tarja
hydra (long edit)
Betwixt & Between
Dangerous
Within Temptation
Summertime Sadness
Within Temptation
Hydra
Rhythmstar & Pawz
And We Run
Within Temptation
【中文填词】不为人知的鹅妈妈童谣【六人合填】【重音テト】
梁松雪, 珞一不高兴, 水螅-Hydra, 锌轲, HANA, Herllie
Hydra
Baron von Swenson
装*(Hydrax Remix)
Hydrax
悴む水銀
Yamaji
HYDRA
Saneyori
HYDRA（piano ver.）
琳依
Hydrangea Song
Lefty Hand Cream, 紀平凱成
Tramp Like You
Oracle Sisters
HYDRA
Ben Monder
Covered by Roses
Within Temptation
Hydra
Kryptos
Hydra Drums
Audiomachine
Let Us Burn
Within Temptation
Hail Mary
Oracle Sisters