In this Nintendo DS game, you play as Yakyuu Team who are trying to save their home from a group of monsters that have taken it over. With the help of your friends, you have to work together to save it before the monsters get it too. The game is set up in a online world where you can battle against other players or use your skills to get ahead. There are many different in-game challenges to face including rescuing people, destroying monsters, and dodging gunshots. There is also aoraname which tells the story of each player along with theircharacters. The game is patched in with other players so you need to be close to each other to get going.