Word Shark

—The Setup
Before you can play this game, you're going to need to enter words or phrases into the setting's textbox. Separate each set with a new line (i.e. Hit ENTER on the keyboard). The longer your phrase, the smaller the tiles will be. So keep that in mind.
A good idea is to stick with a theme. Something like movie titles or popular songs work well, but you're free to make it whatever you want. This is basically hangman, but with a shark.
*You're limited to letters, numbers, and spaces. You cannot use any special characters in this game.
**MAKE SURE YOU SAVE YOUR SETTINGS BEFORE LAUNCHING THE GAME.

—The Gameplay
-- Launch the game and display it on your screen --
This games works best with a contestant. So bring a student up and tell them what the category/theme is. Then hit the, "Next" button in the dashboard to reveal the first tile set. You'll see a scuba diver and 3 walls appear. Explain that each wrong letter will cause a wall to lower. If they get 4 wrong letters, the shark will attack and it will be game over.
Allow the student to call out a letter or number that they think might be behind a tile. All you have to do is hit that key on the keyboard, or press it in the dashboard. The game will either reveal each instance of that letter/number, or you'll hear a buzz and a wall will lower. Everything is automatic, so you don't need to worry if a letter exists or not. Just hit the key and the game will handle everything.
When you're ready to go to the next tile set, just click the, "Next" button, or hit the left arrow key. When you move to a new tile set, everything resets. So each set is its own level/game.
Also, the shark shoots a fireball from its mouth rather than eating the scuba diver. Let that be a surprise to your students.