As a whole class, review your flashcards until you feel your class are comfortable with the words and can recall them with little problem.
Clear lots of space in your classroom and divide it into four zones, similar to the zones on this page. On the floor in each zone, place two flashcards face up.
The teacher stands to one side and faces the wall. The students now quietly go and stand in one of the zones. Each individual can choose any zone they like.
The teacher, without looking, now calls out a flashcard. Any student standing in that zone is out and must sit down. The teacher now turns their back again and the kids can change to a different zone (or stay where they already are, it's up to each individual). The teacher now calls out a flashcard. Any student standing in that zone is out of the game. Keep playing until only three students remain. These are the winners!