Desktop Tower Defense - Nintendo DS Battle against group, flying, immune, spawn, dark and morph creeps all with different skills to challenge the best of players. Tactically place protective towers of differing defensive/offensive capabilities throughout the play area while invaders known as "creeps" attempt to march across the screen. Hundreds of challenging gameplay levels available. Create your own addictive experience by drawing towers and designing unique "creeps" using the innovative technology of the Nintendo DS stylus. Upgrade your turrets to gain even more power.