Sedangkan untuk memunculkan ponsel Niko, tekan tombol arah atas. Untuk memunculkan keypad, tekan tombol arah atas lagi. Lalu tekan tombol call (hijau) untuk mengaktifkan cheat GTA 4.
Sekali cheat diaktifkan, menu "Cheat" baru akan tersedia pada ponsel Niko dibawah menu "Option" sehingga kita dapat mengakses cheat tanpa mengetikkannya.
Cheat dengan konsekuensi achievement yang di blokir
| Hasil Cheat | Cheat | Achievement yang diblokir |
| Armor dan health | 3625550100 | -Cleaned The Mean Streets -Finish Him -One Man Army -Walk Free |
| Armor, health dan amunisi | 4825550100 | -Cleaned The Mean Streets |
| Senjata tier 1 | 4865550100 | -Cleaned The Mean Streets |
| Senjata tier 2 | 4865550150 | -Cleaned The Mean Streets |
| Menghilangkan wanted level (anti polisi) | 2675550100 | -One Man Army -Walk Free |
| Spawn Annihilator police helicopter | 3595550100 | -One Man Army -Walk Free |
Cheat tanpa konsekuensi achievement
| Hasil Cheat | Cheat |
| Menambah satu wanted level | 2675550150 |
| Spawn Cognoscenti | 2275550142 |
| Spawn Comet | 2275550175 |
| Spawn FBI Buffalo | 2275550100 |
| Spawn Jetmax | 9385550100 |
| Spawn NRG-900 | 6255550100 |
| Spawn Sanchez | 6255550150 |
| Spawn SuperGT | 2275550168 |
| Spawn Turismo | 2275550147 |
| Mengganti cuaca dan brightness | 4685550100 |
Cheat khusus GTA 4 "The Lost and The Damned"
| Hasil Cheat | Cheat |
| Spawn Burrito | 8265550150 |
| Spawn Double T bike | 2455550125 |
| Spawn Hakuchou bike | 2455550199 |
| Spawn Hexer bike | 2455550150 |
| Spawn Innovation bike | 2455550100 |
| Spawn Slamvan | 8265550100 |
Cheat khusus GTA 4 "The Ballad of Gay Tony"
| Hasil Cheat | Cheat |
| Explosive sniper rifle shots | 4865552526 |
| Super punch | 2765552666 |
| Spawn Akuma bike | 6255550200 |
| Spawn APC | 2725558265 |
| Spawn Bullet GT | 2275559666 |
| Spawn Buzzard helicopter | 3595552899 |
| Spawn Floater boat | 9385550150 |
| Spawn parachute | 3595557272 |
| Spawn Vader bike | 6255553273 |