The zombies are a plague, luckily for you and your plasma rifle, plasma ammo is free!
With very simple controls (just press left and right to target zombies) sweep clean the streets of zombies. Are you able to reach wave 50 and stop the Zombie Massacre?
The night has come and the zombies have invaded the street again. This is a very problematic public order issue! So it's your task, as the only neighbor with a plasma rifle, to clean them. Upgrade your weapon, improving its fire power and fire ratio, or get more lives to help you in the street cleaning, or even purchase repellent to decrease the number of zombies in the street: you choose how to upgrade your character.