You won all gold medals in all singleplayer levels.
You completed all single player levels.
You employed 20 construction zombies.
You built every trap and a wood blockade in one level.
You built five blockades with super awesome finish in a row.
Ten infected zombies danced at the same time.
You blocked all the doors and windows in one level.
You killed three zombies with one melee attack.
You searched four cacti in a row while playing Mike.
You played five minutes in darkness.
You killed 20 zombies with a single bomb trap.
You activated the Jukebox and make a zombie dance.
