Treasure Protector

My first game jam will be submitted to the LMOB beginners Game jam. 

controls: 

left and right arrow keys to move the balls

goal:

aim the balls at the squares (which are pirates) to kill them make sure the squares do not get to the TREASURE! 

story:  years ago an old man but his riches in a chest, he placed a cannon to protect his riches. Years later greedy pirates(aka squares) found the chest full of riches and now want to take the treasure. It is your job to defend the treasure from the greedy pirates(or squares).