Sequel to the successful and innovative Spira Defence. This update has many requested features such as improved graphics and practice mode. Also in the update are a revamped power system, new enemy types and all new towers. ** Purchase Pro version in-app to remove ads and more. ** Spira 2: A tower defence game with a twist. You must defend your base from enemy attack by building/upgrading defence towers. Money is awarded for kills to spend on upgrades. Interest is earned on the money not spent. ** Ad Supported** Buy Pro version in-app to remove ads and more** News, FAQ and Hi Scores at:** http://funqai.com/and_spira2.html