Twice.
the museum in Astor knights island poptropica
Defeating Mordred and his warrior suit wins the island, and you receive the Island Medallion and 50 Poptropica credits.
The character named Mordred is from the legends of King Arthur, as are most of the references in Astro Knights island. His story in the "real-life" historical annals is quite different from the one in the Poptropica game.
Things that Zap you on Poptropica : Lasers (Spy Island) Electrified Windows (Spy Island) Mini-Bots (Spy Island) Electric Fence (Diamond Mine, Nabooti Island) Electric Caterpillars (Jungle Planet, Astro Knights Island) Mordred's Robot (Astro Knights Island)
With Mordred
You can't costumize him.
It is next to the Mordred Museum at the entrance to the island.
I think that it was Mordred.
Nothing, actually. Hidden between the two bales (trapped between the rocks) is Mordred's secret laboratory entrance. You will need a key.
Mordred does not appear as an interactive character, so it is apprently not possible to copy him.
You don't see him again, as apparently he is trapped in his far galaxy. However, he is somehow transported back to Poptropica by Dr. Jupiter on Super Villain Island. By the end of that island, you have an idea how he did it.
The Village is the first section (leftmost) of the Kingdom of Arturus. It is where you enter the island, and consists of the Mordred Museum (and the fountain), the Planetarium, and the Crop Circle Inn (multi-user games).