Levidrome is a word that when spelled backwards, turns into a different yet valid word. They always come in pairs, for obvious reasons. Similar to a palindrome, but with different words instead of the same.
A few months back my friends and I came across the word 'levidrome' and saw many people online coming up with all kinds of word games around it: lists of levidromes, songs, poems, finding levidrome words in signs, cryptic crossword clues, among many others. We thought it would be fun to make a game of our own. We threw around the idea and thought of making a hangman game. It is a fun variation on traditional hangman: instead of discovering one word, you find two!