ok you have to put in this o,l1,l2,r2,r1 then a gnome will be on the outside of the districs and apartments then put in cheats then find it then click it then click the cheat you want here are the cheats
Maximum Physical skill
Enable the "Cheat gnome" code. While playing a game, quickly press L1, R1, Down, X, L3.

Maximum Mental skill
Enable the "Cheat gnome" code. While playing a game, quickly press L1, R2, X, Circle, Up.
Maximum Artistic skill
Enable the "Cheat gnome" code. While playing a game, quickly press L3, R3, R1, R2, Circle.

Acquire skill object
Enable the "Cheat gnome" code. While playing a game, quickly press L1, R2, Right, Square, L3.

Power Socials
Enable the "Cheat gnome" code. While playing a game, quickly press Triangle, R2, L1, X, Square.

All Socials
Enable the "Cheat gnome" code. While playing a game, quickly press L2, R2, Up, Triangle, L3, X.

Raise motives
Enable the "Cheat gnome" code. While playing a game, quickly press R2, L1, R1, L2, Left, Circle.

Fast forward six hours
Enable the "Cheat gnome" code. While playing a game, quickly press R2, R3, L3, L2, R1, L2.