Quantum Zombies

The zombies has taken over the world.  A scientist is planning to end the zombie plague by travelling back in time.  All is going well and he is now making some preparations to travel back in time when a zombie appeared and start destroying the machine.  The machine suddenly activates by itself and sent the zombie to the past.  The scientist followed the zombie to stop it. Kill all the zombies that you can see in the kingdom.  Get the entire coins drop from the zombies.  Go inside the house to retrieve some coins, medical kit and anything you might find useful.