Hydra (From "Cytus II")
Akira Complex, James Landino
Hydra
James Landino, Akira Complex
HYDRA
MYTH & ROID
Hydra
F-777
Hydra
Rhythmstar & Pawz
HYDRA
狐妖Mikan
HYDRA（instrumental）
MYTH & ROID
Aberfan
Delwyn Sion
Samaria!
Delwyn Sion
Tridiau
Delwyn Sion
Hollywood
Delwyn Sion
Dawnsio
Delwyn Sion
Lle
Delwyn Sion
Lawr! Lawr! Lawr!
Delwyn Sion
Mor Bell i Ffwrdd
Delwyn Sion
Bore Da Gymry!
Delwyn Sion
Marwnad
Delwyn Sion
Hydref
Brickwall Collision
Hydra (Reimagining)
Hydra Lerna
HYDRA
PLATINUM HYDRA, Hooligans product
Hydref, Pt. IV
r.roo
Hydref, Pt. IX
r.roo
Hydref, Pt. I
r.roo
Hydref, Pt. V
r.roo
Hydref, Pt. VI
r.roo
Hydref, Pt. III
r.roo
Hydref, Pt. VII
r.roo
Hydref, Pt. Viii
r.roo
Hydref, Pt. II
r.roo
Hydref
Diarmuid Johnson, Alain Genty