Sign Off "Upgrade" DLC
About this game
The Signs have upgraded. So should You!
Fight waves of signs and get power-ups , money, ammunition, and prizes!
If the free version is not hard enough and lags too much try the DLC. Smooth!
Seriously hard core update! This update is wow -Added Zombies -Added Lava -Performance updates -New Bounties -New Easter Eggs -New Mob Types -Pylons -Daily Rewards -Cone Robots -Statistics -Jail and End Game -Trophy Rewards -Invisible Monsters -Better Mouse Movement -"Night Shift" enabled -Fun