The Demonic Hydra is a Legendary pet in Bubble Gum Simulator. It can be obtained by opening a Nightmare Egg. The chance of hatching it is 0.005% (1 in 20,000), or 0.01% (1 in 10,000) with the Lucky Chances gamepass.

The pet can also be obtained by purchasing the 115th slot at the Rewards Island, and by opening 50,000 eggs and/or boxes and claiming the prize.

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