If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Goofy Duck is a casual game. The main character is a duck that has to avoid the crowns of the trees.
Try to catch the chick to get an extra life. Two lives is the maximum. You can only get more if you delete the chick when it reaches the top/bottom of the screen or the crown of a tree.
Try to pass as many trees as possible to get the highest score and challenge your friends.