In MFL lessons in our school, we love playing what we call 'slappy hands'. Others may know it as 'splat'; you have several answers to questions on the board/wall. In MFL it works well for vocab, practising genders etc. You shout out a question and 2 volunteers have to slap the answer. For this we have fly swatters! First to slap correct answer wins. Also great in groups with answers on a big sheet of paper.
Here's the sophisticated bit. My colleague, Caroline Pattinson has adapted it to work with highlighters, where each group member has a different coloured highlighter and highlights the correct answer when the question is shouted out. it's still a competition, but you can see as a teacher who gets all the questions right.
Great for older classes.