Creators from Beeline came from running stereotype where zombies are used only for spooking people. In game Zombie Café, you can use them for working in a restaurant.
They work for free and when not tired they perform very well. However, when their energy goes to zero they attack the customers. If you think that the competition is making to good you can use the bloody mood for your staff to decrease their success or bring some new tastes or recipe. The game has been really inspired by well known Café World entertaining the Facebook players.