Game Center

Game Center is available in the "More" tab. Here, you can access the Leaderboards, Achievements, and Challenges.

Total Mobsters Beaten
This leaderboard counts for all the Mobsters you beat in fights.

Total Shakedowns
This leaderboards counts for all successful Shakedowns you perform.

Total Gang Bosses Whacked
This leaderboard counts for all Gang Bosses you Whack successfully.

Achievements
There are three categories of Achievements, similar to the leaderboards. There are a set of achievements for Fights, a set for Shakedowns, and a set for Whacking.

Challenges
If you want to challenge a Game Center friend to complete an achievement, you must open one in the Achievements tab and select "Challenge Friend." Any incoming challenges will be located in the "Challenges" tab.