iPhone game center nickname I used my nickname on iPhone 5's Game Center before I changed my Apple ID to [appleid]@cloud.com. After changing my Apple ID to an @icloud.com account, I then deleted my old Apple ID from my iPhone. Now both my nickname and scores disappeared.

Is there any way to get my nickname and scores back?
You can log into your old account again directly in the GameCenter app:


start GameCenter
go to your profile and scroll down
tap on your account name (at the bottom) to log out
log in with the old account