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
Hydra
James Landino, Akira Complex
装*(Hydrax Remix)
Hydrax
Paradise (What about Us)
Within Temptation, Tarja
Summertime Sadness
Within Temptation
Hydra
Smith Village Beat Street
Hydra
Rhythmstar & Pawz
Hydra
F-777
HYDRA
狐妖Mikan
Tramp Like You
Oracle Sisters
And We Run
Within Temptation
HYDRA
Saneyori
Hydra
aran
HYDRA（piano ver.）
琳依
hydra (long edit)
Betwixt & Between
Dangerous
Within Temptation
Hydra
Audio Postman
Hydra
庄司英徳
Hydra
KVKS, HSHK, VodKa, Pnan
HYDRA
MYTH & ROID
Summertime Sadness
Within Temptation
Hydra
R. Armando Morabito, Julie Elven, Tina Guo
紫陽花の夜
ねじ式, GUMI
Covered by Roses
Within Temptation
Hail Mary
Oracle Sisters
Hydra
Space 92
Dog Days
Within Temptation