Help The Bird - A Physics Adventure!

Help the bird!
The poor birdie is trapped with a chain and only you can set him free!
The goal is simple, free the bird from the chain, but the task not always is!
With increasingly addictive and intricate levels you will have to aim your cannonballs to break the chain.
Using logistics and physics you will have to calculate and aim at the right angle to break the chain.
Every level increases the difficulty and there are different challenges and weapons that may hurt the bird, so watch out!
The birdie is anxiously waiting to be released, please help!