Dragon, Club Penguin Wiki
Red Hydra Head, Club Penguin Rewritten Wiki
Club Penguin - Hydra Roar by xXYazzyChanArtsXx on DeviantArt
Hydra, Club Penguin Wiki
Yellow Hydra Head, New Club Penguin Wiki
Yellow Hydra Head, Club Penguin Wiki
Blue Hydra Head, Club Penguin Wiki
Hydra Head, Club Penguin Wiki
Blue Hydra Head, Club Penguin Rewritten Wiki
The Head-turner, Club Penguin Wiki
Red Hydra Head, Club Penguin Wiki
Battle of Doom, Club Penguin Wiki
Yellow Hydra Head, Club Penguin Rewritten Wiki