Hydra (From "Cytus II")
Akira Complex, James Landino
Hydra
James Landino, Akira Complex
HYDRA
MYTH & ROID
Hydra
F-777
Hydrate
Skrillex, Flowdan, BEAM, Peekaboo
HYDRA
Saneyori
HYDRA
狐妖Mikan
HYDRA(OVERLORD Ⅱ ED) 圈9.ver（Cover MYTH & ROID）
圈9
Hydra
Covet
Kids
MGMT
hydra (long edit)
Betwixt & Between
Hydra
Smith Village Beat Street
HYDRA（instrumental）
MYTH & ROID
Hydra
R. Armando Morabito, Julie Elven, Tina Guo
HYDRA
MYTH & ROID
【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 (Stripped)
Julia Wolfe
不认识自己
kxpl, BatHydraEagle, Prod by KK
Hydra
Rhythmstar & Pawz
HYDRA
Ben Monder
Summertime Sadness
Within Temptation
Hydra
KVKS, HSHK, VodKa, Pnan
Hydra (NEFFEX)
NEFFEX, Blvk Sheep, AMF
HYDRA（piano ver.）
琳依
I Am King
Black Hydra & Easy Mccoy
Hydra
RYLLZ, Milos Loren
Paradise (What about Us)
Within Temptation, Tarja
Nature Flow (Teil 1)
Jens Buchert
Hydra
TOTO
Hydra
Celestial Realms