TowerMadness Zero funktioniert nicht

Replays let you learn new strategies or share your games with the world through Twitter, Facebook, or email. iPad owners, check out "TowerMadness HD" for the Pocket Gamer Readers' Choice iPad Game of the Year Award winning version of this game.  TowerMadness is the original hit game from the makers of Zombie Gunship and Nuts!  "If you’re a fan of Tower Defense games, do yourself a huge favor and check out TowerMadness".  There are plenty of tower defense strategy games out there, but TowerMadness brings the genre to a new level".  Global leaderboards, Game Center achievements, and Friend Scores so you can compare scores with your friends and the millions of players worldwide.  TowerMadness Zero is a FULLY FEATURED, ad-supported version of TowerMadness.  Download the paid version or upgrade from within the game!  "It would be madness to miss this game... it comes highly recommended".  Evil aliens are coming to turn your beloved sheep into intergalactic scarves!  Protect the flock using only quick thinking and the arsenal of upgradeable weaponry at your disposal.  Think fast to defeat the 17 different types of alien enemies intent on stealing your sheep.  Play from an aerial view or zoom down to first person and get close to the action.  Over 100 maps in diverse environments (35 available as expansion map packs).  Endless mode lets you see how many waves you can withstand.  Prefer to play without ads?  "Addictive, time-sucking fun.