A review game that my students and I really enjoy is one that I call "Clue."  It's a whole class review, but only two students compete at a time.  Two students come up to the board but face the class.  I write a term such as a concept that's been taught or a vocabulary word, etc. on the board behind them.  They then take turns calling on a student to give them a one-word clue to help them guess the word.  They take turns calling on students until one of the two at the board is able to guess the word.  The student in the "audience" that gave the final clue then gets to come up to the board and takes the place of the student who was not able to guess the answer.  It's fun because the students in the audience really have to think about the concept to be able to give a good enough clue so that the student can guess it correctly, and the students at the board have to be able to process the different clues they are given so that they can give the right answer.