GTA III on PC uses **keyboard-entered cheat codes** during gameplay—no menus, no consoles. They are case-insensitive and activate instantly when typed correctly.
| Effect | Code |
|---|---|
| Full Health | GESUNDHEIT |
| Full Armor | TURTOISE |
| Weapons Tier 1 (Base) | THUGSTOOLS |
| Weapons Tier 2 (Mid) | PROFESSIONALTOOLS |
| Weapons Tier 3 (Advanced) | NUTTERTOOLS |
| Raise Wanted Level | YOUCANTLEAVEMEALONE |
| Lower Wanted Level | LEAVEMEALONE |
| Sunny Weather | ILIKEDRESSINGUP |
| Cloudy Weather | TIMEFLIESWHENYOU |
| Flying Cars | CHITTYCHITTYBANGBANG |
| Tank (Rhino) | PANZER |
Search **"GTA 3 PC cheats"** on GTAGarage, GTA Wiki, or CheatCC. Always test on a throwaway save first.