Very well done game!
Just beat level 20, whlie I only wanted to test games for like 5 minutes, oopsie.
Very smooth graphics and animations, sounds are fitting, music is not annoying.
It all looks very polished and with some achievements or leaderboards I can see this in an app store and people play it.
one thing though:
In this situation, I could't pick the 9/9 skeleton
In this situation, I could't pick the 9/9 skeleton, it only clicked the others. But that's the only bug I fould.
If I may ask two questions, out of curiosity:
1. How do you make sure a word is valid? Do you have a big dictionary in the background you got from somewhere, or does it check online?
2. When dropping new letters, are they entirely random, or did you weigh letters differently, so you get more frequently used letters more often?
Very good job on this(rated this very good as well).