After each window you must find another window to continue escape and also after each window your score increases.
Your goal is to get high score. The game is ending when the sphere touches the wall.
You can move sphere up, down, left and right (click Help button to see demonstration).
The game have RELAX MODE which you can activate in game settings, in that mode difficulty is not changing.
Available in Google Play (use EscapeFromWindows for search to find it quickly)