Cute, but with one annoyance
I felt the game was pretty enjoyable. I personally didn't like that it was the same level just with changing obstacles, but I understand more maps means more work and more file size.
My annoyance is with words that have repeated letters, like "local." I don't feel that it should matter which (L) I pick up first, but the game did care. There was a specific "first (L)" and "last (L)" The "correct" one was yellow, and the "incorrect" one was red, so there is a distinction between them. This restriction should be removed, or if it isn't feasible to do, then merely using words without the same letter twice would work as well.
I do agree with a previous reviewer that the game would be improved if the arrow were removed, and if the next letter didn't light up. I also feel that showing the word during the level is kinda cheating (but it's a good idea for children, or an "easy mode").