1. Launch the Gangster Shooting Police Game on your mobile device.

2. Start your mission in the open-world city environment. Every mission has a time limit, so complete objectives quickly and efficiently.

3. Use on-screen controls to move your character: virtual joystick for movement, action buttons for jump, fire, aim, and interaction.

4. Navigate through the city streets or explore off-road mountain areas using vehicles. Tap the vehicle icon to enter or exit cars.

5. Steal and drive supercars scattered around the city. Use them to escape danger or reach mission areas faster.

6. Engage in gunfights with rival gangs and mafia enemies. Tap the aim button to target and fire at enemies.

7. Rescue your gang members from enemy territory by defeating opponents and reaching the rescue point.

8. Avoid police patrols and evade capture by escaping their sight or defeating them in combat.

9. Complete each mission by achieving objectives within the given time to progress to the next level.

10. Use the in-game map to locate mission points, enemies, and vehicles.

11. Pause the game using the pause icon to access settings or instructions.

12. Become the ultimate gangster hero by surviving missions, defeating enemies, and gaining control of the crime city.