Walkthrough: 1, 2, and 3 are obvious, switch the 2 shapes switchable. 4. Switch the 2 green shapes. 5. Switch the 2 shapes twice. 6. Switch the medium green square with the big one, then the big one with the small one. 7. Switch the triangle with the circle, then the square with the triangle. 8. Switch the green triangle with the top red one, then switch the green one with the other red one. 9. Circle with right square, top square with middle square. 10. Big red circle with green one, then quickly switch green circle with small red circle. 11. Green square with red circle, green square with blue square. 12. Green square with left red square, green triangle with green square, green triangle with green square. 13: Big rectangle with small square, small square with big rectangle. 14: Big square with left small square, big square with right small square. 15: Big square with small green square, big square with small blue square. I made this for people too lazy to watch the Walkthrough :p