iPad Air 2 Data Transfer I recently purchased a new iPad Air 2. My old iPad had the most recent iOS installed, and had been backed up. On some games, my data transferred, but on others, I lost all of my progress.
Since most items seem to have transferred, it sounds like the games weren't included in the backup of your old iPad. It is also possible these games required you to sign in with the same Game Center account to associate the new device with your progress.