Word Sandwich challenges you to find a specific five-letter word. It's the verbal equivalent of Hi-Lo.
The creators of the game describe it thusly:
How to play:
|The object is to guess the mystery five letter word. Your guesses will float to the top if they are too “high” alphabetically, and they will float to the bottom if they are too “low” alphabetically. (You can hit the enter key after each guess.) A bonus multiplier is applied to your score if you solve the word quickly. There are five words to guess in a game, and there are no proper words.|