If you love playing games on iOS so much that you beat the games quickly and then end up getting bored with them, then you should take a look at a new jailbreak tweak called Underachiever
by iOS developer Ingmar Stein
. With it, you can reset your in-game achievement progress so that you can try earning all of the achievements all over again instead of playing a pointless game where you’ve already earned all the achievements.
The tweak comes in with quite a practical background,