Mad Snail Diseased Seapony

"These Mad Snail Diseased seaponies wanted to scare Princess Skystar and Queen Novo, like the Mad Snail Diseased hippogriffs, and sweet Celestia and Luna, that's worse than I thought. I must stop those zombified seaponies and save Seaquestria from those jerks. I must keep the Princess and the Queen safe from harm! Right now. If I don't, what will happen?"

--Su Ji-Hoon, The Mad Snail Disease Returns

The Mad Snail Diseased Seaponies are the underwater infected Seaponies of the New Group P365 that they are victims of Mad Snail Diseases in during the Great P365 War.

Only happened when the New Group P365 deployed the Mad Snails which certained the Mad Snail Diseases that made them bite and infect the Seaponies,which later became parts of them.

They can be located in Seaquestria that they will be the new undead infected enemies to against Princess Skystar and Queen Novo or the other seaponies.