Hydra Trophy was created in 2008.
You can't get a 'Hydra Air Ride Machine' trophy, but you can get a Dragoon trophy at random and a Halberd trophy by clearing Event #3 (Pink Ball Repulsion).
The Hydra Trophy is awarded annually to the #1 women's flat track roller derby team in the world.
Imperial Hydra was created in 1965.
Hydra the Revenge was created in 2005.
Hydra vulgaris was created in 1766.
Maneater of Hydra was created in 1967.
Hydra oligactis was created in 1766.
Hydra viridissima was created in 1766.
Worcester Hydra was created in 2011.
Hydra viridis was created in 1767.
Hydra Ventures was created in 2011.
Teeth of the Hydra was created in 1984.