Use touch controls to tap on the screen to aim and shoot. Practice timing your shots for headshots to maximize damage.

Yes, you can upgrade your weapons by collecting coins and resources found in the game. Check the in-game store for available upgrades.

Unlock new areas by completing missions, reaching certain levels, or finding keys and other items scattered throughout the city.

The objective varies per level but generally involves surviving for a set time, killing a specific number of zombies, or completing tasks while avoiding traps.