Stamps
Stamps are awards for things you do in games and around the island, like visiting 30 different rooms in one visit or finishing a hard level in a game. When you earn one, a stamp notice pops up on your screen.
Your stamp book
Open your stamp book from your player card to see the stamps you have and the ones still to earn.
Double coins
Once you have every stamp of a game, that game pays you double coins. A game has to last at least 20 seconds to pay coins or earn stamps.
Checked against the game on .