Monster's vs Aliens is a new game on the Nintendo DS. Yourself is a player who must help save the world of aliens from the aliens themselves. With each turn, you are able to call on friends to help you fight the aliens, or use your own skills to build the most powerful alien ship to battle against the aliens. The game is easy to play, but is more difficult as you need to quickly build enough points to defeat the aliens. There is a leaderboard of players to compete in, and if you're able to beat the leaderboard, you can win a prize. The game is short, but it's a lot of fun.