Hydra (From "Cytus II")
Akira Complex, James Landino
HYDRA
MYTH & ROID
Hydra
Covet
HYDRA(OVERLORD Ⅱ ED) 圈9.ver（Cover MYTH & ROID）
圈9
Hydrate
Skrillex, Flowdan, BEAM, Peekaboo
Paradise (What about Us)
Within Temptation, Tarja
Hydra
aran
Hydra
F-777
Summertime Sadness
Within Temptation
And We Run
Within Temptation
Dangerous
Within Temptation
Hydra
James Landino, Akira Complex
HYDRA
MYTH & ROID
Tramp Like You
Oracle Sisters
Hydra
Smith Village Beat Street
Hydra
Rhythmstar & Pawz
Nature Flow (Teil 1)
Jens Buchert
HYDRA（instrumental）
MYTH & ROID
Hydrangea
Sound Online
Hydra
R. Armando Morabito, Julie Elven, Tina Guo
HYDRA（piano ver.）
琳依
Edge of the World
Within Temptation
Dog Days
Within Temptation
Hydra (Original Mix)
Holl & Rush
Summertime Sadness
Within Temptation
HYDRA
四六時Shirokuji
hydra (long edit)
Betwixt & Between
Whole World is Watching
Within Temptation
Let Us Burn
Within Temptation
紫陽花の夜
ねじ式, GUMI