1. Launch the game "Toilet Monster Attack Sim 3D" and wait for the main menu to load.

2. Select your game mode from the available options such as TPS (third-person shooter) or FPS (first-person shooter).

3. Choose your character and customize your weapons if available.

4. Enter the haunted toys arena filled with evil plush toilet monsters and spider trains.

5. Use the W, A, S, D keys on your keyboard to move your character forward, left, backward, and right.

6. Move your mouse to rotate your view and aim your weapons at attacking toilet monsters.

7. Press the Space bar to jump over obstacles or avoid enemy attacks.

8. Navigate through the creepy dance city, searching for hidden enemies and rescuing captured characters.

9. Use your equipped weapons to shoot at spider toilet monsters and clear the area of evil plush threats.

10. Complete various missions and objectives to progress through the game and unlock new areas.

11. Survive waves of enemy attacks and defeat the boss monsters to secure peace in the haunted city.

12. Collect power-ups and ammo scattered around the map to enhance your survival chances.

13. Monitor your health and reload when necessary to avoid being overwhelmed by enemy forces.

14. Finish all levels and claim victory in the ultimate toilet monster battle.