A new, cleverly named tweak has been released into Cydia, on the BigBoss repository. The apps function is simple. It enables all the achievements for games you select in Apple’s Game Center.
The tweak is fairly simple. After installing the tweak, just visit the Settings app, and in the Overachiever section, select whichever games you want to enable achievements for. After that, just open Game Center and check out all the achievements.
Watch the video demo below: