Nice idea, but sadly, really buggy.
1. One time, matches kept disappearing when I clicked them.
2. In the same level, which was one with locked matches, I could turn two 6's into 8's, but was unable to revert this, because the matches became locked.
3. Sometimes, it won't let me drop matches in some spots. One level is impossible to solve because it doesn't let me drop matches anywhere.
Also, as a suggestion: a button to retry a level without returning to level select and then back into the level would be appreciated, especially considering a level can become impossible to clear due to aforementioned bugs.
Without the bugs, I would give this a 4/5. I like some of the menu navigation and background art.