How do you redo all the islands on Poptropica?

Answer 1

Originally, Poptropica did not allow you to replay islands, but beginning in 2011, you can. But you can still only win an island's 100 credits once for any given username, and you cannot combine credits from different accounts.

Go to the island you wish to redo. Click on the small map at the upper right, and you should see the option to Restart the Island (blue button). This will erase all items, including the Medallion, but the Medallions you have already won will still appear on your Status Page (star).

This could be valuable in escaping any major glitches while playing an island.