In The Urbz, there are 4 different groups known as "Rep Groups". After the Urb has been designed, the game asks a series of questions, which decide what Rep Group the Urb will belong in. Each group consists of 4 Urbz, excluding the player, has their own Rep Leader, Trophy, Rep Item and Mission. When all 10 bars of the player's Urb are green, the Sim can talk to the Rep Leader and change groups.