Advance Wars: Days of Ruin After a cataclysmic meteor strike exterminates 90% of the population, the survivors must battle barbarians, disease, and strongmen who seek only to secure their own power. Exchange friend codes with a close circle of military geniuses, then declare war over Nintendo Wi-Fi Connection on over 170 two-, three-, and four-player maps. Pit your skill against the world as you take on random players on over 170 maps. Use the Touch Screen to design your own maps, controlling every aspect from troop placement to terrain features. Use the stylus to paint and create your perfect map, then link to a friend via local wireless communication or Nintendo Wi-Fi Connection and swap your topographical masterpieces.