Hangman is a word-guessing game normally played with a paper and pencil. This geocache requires you to play an electronic version of the word game. Successfully guess the word (think Vanna White) and the container will reward you with a logbook, toys, and batteries for your GPS.
There is a small list of words which the program randomly selects from. You will turn a knob to highlight a particular letter, then press a button to enter your selection. When you select the letter, the program displays a * instead of the letter and you aren't allowed to select that letter again. If you guess the word, you win and the door will open for five seconds. If you guess too many wrong letters, it's "game over, man!" Depending on how good you are at "Wheel of Fortune," I think this will be a really fun or frustrating cache, if my name isn't Cliptwings!
As always, watch out for critters and cactus, and bring plenty of water if you plan to walk the trail.