On game start, the user will press a key. The game will then...
- Compare the input to previous user inputs, if there are any.
- Compare the input to the hidden word.
- Reveal hidden letters if user input is correct.
- Count down remeaining guesses is user input is wrong.
- Reset the game when won or guesses run out.
The game ends when the user has revealed all hidden letters or run out of guess attempts.