⭐️Ok, i know how to delete a game from the Game Center. If you delete a data from the Game Center, you will have the game deleted, too. Be careful about which one you pick. This works for ios 6 or 7, but they have different forms, or shapes. Ok, now let's go to how to do it.
First, you must go into the Game Center itself. Then, click the "games" button at the bottom. Then, click "more games" if the games don't all show up. Next, you find the game you want to delete. Finally, look at the game and swipe left with your finger on top of that game and it will say "remove". Click the red "remove" button and it will say something about uninstalling on ios 6, on ios 7 it will say something different. Just click uninstall or remove and the game is off your Game Center. Hope this helped you!⭐️