Duo Maze comes from seifeddine bouhlel.  The object is to merge the blue and red balls. 
Focus on the red ball.  As you move the red ball, the blue ball moves in the opposite direction at all times.
I'm not sure how many levels there are.  I've done about 20.  It's okay!https://itunes.apple.com/us/app/duo-maze/id1458993120"mt=8

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