Instructions
Successfully complete group levels 12, 13 and 14. The game requires that you start at level 12-1 and that you complete each level in sequential order; no level is unlocked for play until the previous level has been completed. After completing level 14-15, flick your screen from right to left to see the last three levels, which were not previously available.
Tap the Facebook logo with a thumbs up symbol. A new Web browser window opens to the Facebook homepage. Log in to your Facebook account if your device is not set up to log you into Facebook automatically. Upon signing in, you are redirected to the "Angry Birds" Facebook page.
Tap "Like" at the top of the "Angry Birds" Facebook page.
Return to your "Angry Birds" game. The last three levels of Ham 'Em High are available. Unlike the other levels in Ham 'Em High, these bonus levels can be completed in any sequence; you do not have to complete one to unlock the next.