Hangman is simple. Go around the room to each student (or split into groups) and have them give a letter. If it's wrong, hit the spacebar on the powerpoint for the face to appear.
Usually I do a point system. If they get a correct letter, they get 1 point. If they get the correct word, they get 5 points. After several rounds, the points can be added up to see who wins.
What Am I? Hints can be edited, but I used some vocabulary from the second half of the New Horizons book. The sooner the kids can get the answer, the more points they get. Same as with hangman, points can be added up at the end to see who wins.