Island Medallion

The Island Medallion, or simply called Medallion, is a medal given to you as a reward if you complete an island/quest. The Medallion comes with 150 free credits (originally 100 and later 50), and can be worn by the Poptropican.

Islands
The only way to earn the Medallion on each island is to complete the quest. Each island has different ways to complete the quest.

Previous Owners
All the medallions belong to someone else before you got them.
 * Early Poptropica: The Chief of Early Poptropica
 * Shark Tooth Island: Professor Hammerhead
 * Time Tangled Island: The player's future self
 * 24 Carrot Island: The Mayor
 * Super Power Island: Ned Noodlehead/Chief of Police
 * Spy Island: Top Secret Secretary
 * Nabooti Island: Woman at museum
 * Big Nate Island: Mrs. Godfrey
 * Astro-Knights Island: Richard
 * Counterfeit Island: Policeman
 * Reality TV Island: Helicopter Pilot
 * Mythology Island: Athena
 * Skullduggery Island: Governor Roland
 * Steamworks Island: Mayor Crumb
 * Great Pumpkin Island: Lucy
 * Cryptids Island: Harold Mews
 * Wild West Island: Marshal Taylor
 * Wimpy Wonderland: Greg Heffley
 * Red Dragon Island: Jack and Annie
 * Shrink Ray Island: C.J.
 * Mystery Train Island: Grover Cleveland
 * Game Show Island: Dr. Harold Langley
 * Ghost Story Island: Magistrate Henry Flatbottom
 * S.O.S Island: Captain Boomer
 * Vampire's Curse Island: Count Bram
 * Twisted Thicket: Elf Queen
 * Poptropolis Games: MC
 * Wimpy Boardwalk: Greg Heffley
 * Lunar Colony Island: Director McNabb
 * Super Villain Island: Security Guards
 * Charlie And The Chocolate Factory: Willy Wonka
 * Zomberry Island: Samuel Brains
 * Night Watch Island: Slugger's Owner
 * Back Lot Island: Carson Willis
 * Virus Hunter Island: Dr. Lange
 * Mocktropica: Woman working at Poptropica headquarters
 * Monster Carnival: Edgar
 * PoptropiCon: Tessa Turncoat
 * Mystery of the Map: Mya

Credits
When the player completes an island quest, the reward is 150 credits as of summer 2015. Prior to late 2011, the award was 100 credits, and between 2011 and 2015, the reward was only 50 credits.

Restart
Starting July 6, 2011, Poptropica started allowing players to replay islands, while keeping all the Island Medallions they had already earned. The medallion they received from completing once will disappear from their inventory, but not their friend's page. However, they will not receive credits on replays.