Block Battles funktioniert nicht

Welcome to Block Battles: Star Guardians, a fast paced super fun competitive online top-down shooter.  Block Battles: Star Guardians gives all the power to the player.  Block Battles: Star Guardians is fully enabled for Game Center leaderboards.  Jump into these mobile friendly blocky wars and battle friends or foes.  Rise to the top of the leaderboard ranks and force your friends to admit your supremacy. Got nimble thumbs?  There are a variety of power ups each with it’s own ability to turn the tides of battle.  There are 3 maps included with the initial release of the game: Forrest Bunker, Black Ice Base, and Desert Halo.  Each costume piece can be customized, mixed and matched so you can show your own unique style at the battlefront.  Then jump from the black of the shadows, grab a power up and force your score to the top.  After the battles earn new gear to outfit you Star Guardian on the battlefield.  Win online, get new loot, show your style. It’s tons of fun!  Chase your friends scores or go for the glory of ranking on the global leaderboards.  Earn chances to gain new blocky costume pieces.  Then give yourself an awesome online name that will strike fear into the hearts of your foes.  Spew machine gun fire over the field or run for cover while waiting for your shields to regenerate.  Pwn your friends and AI bots. Rise to the top.