You was left behind with only a sharp machete and a horde of zombies. Make your swipe and cut everything ahead to survive as long as your abilities let you.
Your objective is to cut all zombie heads that show up before they wound you.Try to do that avoiding hitting scared people that can also pops up.
You can only get wounded 3 times before becoming a zombie. But if you get wounded, a MedKit can recover you.
When a scared person is hit by you, one heart will be lost. It can be recovered by getting a Heart that spawns randomly.