Hydra (From "Cytus II")
Akira Complex, James Landino
HYDRA
MYTH & ROID
Hydra
Covet
Summertime Sadness
Within Temptation
Paradise (What about Us)
Within Temptation, Tarja
HYDRA(OVERLORD Ⅱ ED) 圈9.ver（Cover MYTH & ROID）
圈9
HYDRA
四六時Shirokuji
Dangerous
Within Temptation
Hydra
Celestial Realms
Hydra
Smith Village Beat Street
And We Run
Within Temptation
Covered by Roses
Within Temptation
Tramp Like You
Oracle Sisters
Hydra
Rhythmstar & Pawz
Let Us Burn
Within Temptation
十六夜、刻を止めて
玲瓏のHydrangea
HYDRA
狐妖Mikan
Hydra
aran
Hydra
F-777
Hydra
Space 92
Hydra
James Landino, Akira Complex
Whole World is Watching
Within Temptation
HYDRA
Saneyori
Summertime Sadness
Within Temptation
HYDRA
Ben Monder
装*(Hydrax Remix)
Hydrax
HYDRA（piano ver.）
琳依
HYDRA (Sped Up)
LXNGVX, DJ FKU
Hydra
Dal Av, Jackson Rose, Scottay, Everglade
hydra (long edit)
Betwixt & Between