Doctor Acorn: Birdy Level Pack is a physics puzzle game in which Doctor Acorn will be out to save the world. He will need your help to move through the different areas. You will have to click on switches, cut the ropes, use the tools, and manipulate the things in the surrounding to guide the character. There are so many useful items to collect and so many dangers to avoid during the journey. The checkpoints save the progress and that is the saving grace for players as the game rapidly increases in difficulty.