The objective is to roll the red cube around the impossible shape to get to the exit
There are 89 levels and I've done 60 in the past 2 days. They go pretty fast but I've gotten stuck in endless loops.
Also, this puzzle app game allows you to create your own shapes for others to solve.
Update 8/14/16: I finished all 89 levels and even created 2 of my own levels.
Yunus's other game Voi coincidentally, reviewed this same week.