The design of some of the levels in this game was pretty cool! While I think the idea that you approached is not the most original, the usage of different tiles, such as falling and turning ones definitely allowed the game to get more fun!
I do have to agree with the comment below, falling off the map was a common and annoying thing for me. On the other hand, however, it just made me extra cautious about the steps I should be taking next.
Great job on the game!