Skeleton keys. Find your keys to unlock treasure

This is an additive treasure hunting type of game.

You are a treasure hunter who has acquired the keys to countless treasure chests. You must unlock them all ! Swipe the screen to move your keys. All the keys will move at the same time. You will use every key to unlock treasure box with the given moves

You can move them LEFT, RIGHT and DOWN,but no UP. Be careful, you might get yours keys stuck and have to restart the level ! There are 10 levels, split into four 30-level regions : the Forest, the Caves,the Beach, and the Pirate Ship