HYDRA
MYTH & ROID
Hydra
James Landino, Akira Complex
Hydra (From "Cytus II")
Akira Complex, James Landino
Hydra
Covet
Hydra
F-777
7 Weeks 3 Days (Luigi)
tree9capone, luserista, Hydraxd
Hydra
Smith Village Beat Street
hydra (long edit)
Betwixt & Between
Hydra
Celestial Realms
Kids
MGMT
HYDRA(OVERLORD Ⅱ ED) 圈9.ver（Cover MYTH & ROID）
圈9
Hydra
Rhythmstar & Pawz
Hydra
KVKS, HSHK, VodKa, Pnan
HYDRA（piano ver.）
琳依
Hydra (Original Mix)
Holl & Rush
HYDRA OGGANG
Hydra
HYDRA
狐妖Mikan
【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
Summertime Sadness
Within Temptation
装*(Hydrax Remix)
Hydrax
Hydra (NEFFEX)
NEFFEX, Blvk Sheep, AMF
HYDRA（翻自 MYTH&ROID）
冰镇豆沙君
Tramp Like You
Oracle Sisters
And We Run
Within Temptation
Hydra
aran
Summertime Sadness
Within Temptation
Hydrangea
くるぶっこちゃん
Hydra
庄司英徳
Paradise (What about Us)
Within Temptation, Tarja
Let Us Burn
Within Temptation