You step on one head, then another but you can't wait to long to step on all of them otherwise they start to wake up. Then you just pluck it off.
The Hydra is a six headed beast on Poptropica.
you can't
you have to jump on all 5 of the hydra's heads and then click on the hydra and you will get the scale
Jump on their heads.
When it tries to bite you, jump, and land on its head.
Defeat the hydra who is found in a cave in the bottom left of poseidon's water maze.
Move your mouse over the neck of the hydra and wait till it makes the pointing finger. Click
To get the Hydra scale on Mythology Island in Poptropica, you need to defeat the Hydra by using the arrows to hit its heads. Once you successfully defeat the Hydra, one of its scales will drop. Approach the scale to collect it, and make sure to explore the surrounding area for any additional items or tasks you may need to complete on the island.
It's an underwater cave at Poseidon's "castle"
you dive down underwater and you go into a cave
Wait for the hydra to attack then jump on each of its heads tell they are all sleeping. Then click on the Hydra.
A hydra is a 7-headed creature that, whenever a head is cut off, 2 more grow back! Very deadly.