It’s simple to activate a cheat code in Grand Theft Auto V for the PlayStation 3. You can check out an expansive list of GTA 5 Cheats PS3 below! How to use cheat codes in GTA V for the PS3 Whether it be making your character run at super sonic speed or shoot flaming bullets, Rockstar has included an arsenal of awesome GTA 5 cheats for the PlayStation 3. Grand Theft Auto 5 is a fun video game on its own, but we all know cheat codes can add some excitement to the already enjoyable open-world game. Grand Theft Auto V PlayStation 3 Cheats.How to use cheat codes in GTA V for the PS3.