Blowup Zombie

BLOWING UP THOSE ZOMBIES COMING CLOSE!
A virus is spreading in the city and a lot of people turn into zombies and they occupied every place they could.You walk by and find that you are already in the middle of a large group of zombies and theres no way out unless you blow up those zombies with the gun you carry.However,there are so many zombies and you have to move quick. Blow up those zombies before they are getting close and clear them all as quickly as possible!