Über Brain Twirler
Move the red piece to the top of the screen. Pieces move by rotating around their ends. Seems easy? It isn't.
"Brain Twirler easily makes the List of Best Puzzle Apps of 2013!" - gottasolveit.blogspot.com
↳ 50 puzzles of increasing difficulty. Try getting two stars in all of them!
↳ If you get stuck, use the built-in hint system.
↳ For an additional challenge, turn off the help circles.
↳ Don't lose your way, thanks to the unlimited undo/redo.