Zombie Survival with player accounts!

This is my game, Zombie Survival. It’s a fairly simple game, but it uses a few concepts that I’ve been wanting to try out for a while such as the accounts you can make.

In the game, you simply create an account (the max is 3) or use an existing one and survive for as long as you can against the onslaught of zombies! Your score at the end of the game is a combination of your time survived and zombies killed.