*MISSABLE* This achievement requires that you complete 20 consecutive levels without exiting the game at all. This should be done on the first 20 levels of the game, as they are the shortest. You should be able to complete these 20 levels (using guides) in around 1 hour. After you complete each level, hit "Save and Continue" to move on. Make sure you never exit out of the game at all, accidentally hit the Start or Bing buttons, or let your phone's screen lock. These will all void this achievement. You also can not hit the Back button after completing a level as it will take you to the Main Menu. It is suggested you set your screen timeout to the maximum your phone allows before attempting this, just in case you take too long looking at a solution. As soon as you complete the 20th level in a row, the achievement will unlock.