Instructions
Use the sling shot on the left side of your screen to shoot the pigs located on the right side of the screen. Many pigs are surrounded by a structure, such as a wooden building, and can only be destroyed by knocking down the structure. Each time you clear all of the pigs from one level you are allowed to move on to the next level.
Click the double arrows pointing to the right at the end of one level to go to the next one. Alternatively, pause your game and tap the "Menu" icon in the left side toolbar. Tap the number icon for the next level to open it.
Repeat the previous steps for each level of the same world. Once each level is lit up and reflects the number of stars you earned, the entire world is complete. "Angry Birds" also gives you a pop-up message the first time you complete the world.
Tap the left arrow at the bottom of your screen to return to the "Angry Birds" main menu.
Scroll the screen from right to left to see the icon for the next available world. Tap the name of the world once to open it and begin the first level.