Like a tower defence game. But set in a cupboard.
Something terrible has reached the mall. Grab whatever you can from the shops, barricade yourselves in the store cupboard, and survive until dawn.
* Please forgive me Scotland. Yes, I grew up on the outskirts of Edinburgh, where there were no 'malls' but, "Run to the Wester Hailes Shopping Centre" didn't quite have the same ring to it. The threats were real though...