Curse of the Crescent Isle DX achievements

Complete a stage in co-op

Complete the Boss Rush Mode

Complete the game with no coins

Complete the game as the Queen

Collect all 27 coins in the game

Complete Speed Run Mode

Break one of those big rocks

Complete the game as the King

Hit the third boss three times on its way up

Defeat Aranomanom

Find one of the special messages in the password screen

Defeat Naja Naja