Reviewgamezone.com Go online to reviewgamezone.com and on the right (or scroll down to) where it says “Games By ID#” type in 21618 & 21621. Then scroll down and look at all of your choices for the type of review game to play. You will see review questions and 4 choices for an answer. Click on the answer you think is correct. If it is the wrong box it will turn red and it will show you the correct answer by lighting that box up in green. If you answer a question correctly you will be able to play the game you chose for about a minute and then it will pause and ask you another review question.