HYDRA
MYTH & ROID
Hydra
James Landino, Akira Complex
Hydra (From "Cytus II")
Akira Complex, James Landino
HYDRA
Saneyori
Hydrate
Skrillex, Flowdan, BEAM, Peekaboo
HYDRA(OVERLORD Ⅱ ED) 圈9.ver（Cover MYTH & ROID）
圈9
Hydra
F-777
Hydra
Covet
HYDRA
狐妖Mikan
Kids
MGMT
hydra (long edit)
Betwixt & Between
Hydra
Smith Village Beat Street
HYDRA
MYTH & ROID
Hydra
R. Armando Morabito, Julie Elven, Tina Guo
HYDRA（instrumental）
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
Summertime Sadness
Within Temptation
Hydra (NEFFEX)
NEFFEX, Blvk Sheep, AMF
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
Ben Monder
Hydra
KVKS, HSHK, VodKa, Pnan
HYDRA（piano ver.）
琳依
Hydra
Celestial Realms