How do you beat gravity grid

The solutions for the 30 levels are:
1. Right
2. Right
3. Flip (invert)
4. Flip, Right
5. Right, Left
6. Flip, Right
7. Left 3
8. Left 2, Right
9. Flip, right
10. Flip, left
11. Flip, Left 2, Right
12. Left 5, Right
13. Flip, left
14. Right, flip, left
15. Flip, left
16. Right, flip, left 3
17. Right 5
18. Left 2, Right 5
19. Left 7
20. Right 3
21. Flip, Left 2, Right
22. Flip, Right 2
23. Left 4, right
24. Flip, Right, Flip, Right 4, Left
25. Right 2, Left 2
26. Flip, Right 3, Flip 2, Right (7 moves)
27. Flip, Right 5, Left
28. Flip, Left 3
29. Left 2, Flip, Left 3
30. Flip, Right 5