Talk:Hydra/@comment-72.218.95.245-20191010000310

So in the Notes section it says:

>Regardless of how much remaining health it has, if all of a Hydra's heads are severed it will die instantly.

I don't know if it's simply different in other versions of the game but in Prepare to Die Edition this is not true. The completely headless body will still need to be killed.