This one's great and an extremely creative take on the theme. Shoutouts to Alexander Nakarada also, probably my pick for favorite royalty-free composer. I don't really have a lot of notes because to say what I liked would be to basically describe the whole game! It's simple and incredibly effective.
If I have any nitpicks: one is that it would be nice to go back to the title screen to see the rules from the game screen. I figure "Exit" is meant to close the game, since it otherwise doesn't do much. Further: the assumption I made personally when reading "The word WORDY is not in this round" was that anything that wasn't explicitly part of the five words scrambled in was invalid, and other real words would not be taken in. It wasn't until i was left with the letters B E E B E (funnily enough, considering your user!) that I realized getting a blackout is a bonus, not the goal. Might be worth clearing that up?
But really: this is an all-timer. Considering your background I was really looking forward to what you had in store, and my expectations have been thoroughly exceeded. Great job!