1. The game will start automatically and you'll be prompted to choose the number of players and difficulty level.

2. Once the game starts, you'll control a single zombie running through the city streets.

3. To turn humans into zombies, simply run into them. The more humans you convert, the larger your zombie horde becomes.

4. Use your finger or mouse to control your zombie's movements, jump over obstacles and avoid getting hit by cars or bombs.

5. As your horde grows, you'll be able to overcome obstacles and break through barriers that were once impossible to pass.

6. Collect coins and power-ups to earn more points and upgrade your zombies.

7. Keep playing and see how far you can get!