If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Aye, a true pirate's treasure: lots 'n' lots o' dubloons...
Turn over as many coins of the same kind in a row as you can. Gold coins are worth more than silver coins, and silver coins are worth more than bronze coins. The bigger your treasure at the end of the game, the better!
Crab coins will give you a peek at all the coins on the playing field.