Hydra (From "Cytus II")
Akira Complex, James Landino
HYDRA
MYTH & ROID
Hydra
Covet
HYDRA
狐妖Mikan
I'll Be Waiting
luserista, tree9capone, Hydraxd, berkonjoke
HYDRA(OVERLORD Ⅱ ED) 圈9.ver（Cover MYTH & ROID）
圈9
HYDRA
四六時Shirokuji
HYDRA（piano ver.）
琳依
HYDRA
MYTH & ROID
Dangerous
Within Temptation
Hydra (Meditation)
Celestial Realms
Hydra
James Landino, Akira Complex
Covered by Roses
Within Temptation
Hydra
Smith Village Beat Street
HYDRA
Saneyori
Hydra
aran
Hydra
F-777
HYDRA（instrumental）
MYTH & ROID
Hydra
KVKS, HSHK, VodKa, Pnan
Hydra
Celestial Realms
HYDRA
LXNGVX, DJ FKU
hydra (long edit)
Betwixt & Between
HYDRA
峵川
Summertime Sadness
Within Temptation
Hydra
RYLLZ, Milos Loren
Hydra
NLW, Blinders
Hydra
Fred V, Grafix
Hydra
ARTIN, Revealed Recordings
Hydrangea
Sound Online
And We Run
Within Temptation