1: ZSG is now much higher resolution!
2: Weapons do 2X more damage
3: Upgrades are cheaper and faster to buy
4: Zombie speed increases 9% per round instead of 3%
5: The 4 second round transition delay is now reduced to 0 seconds, zombies instantly re-spawn when all zombies are killed
6: High scores are reset due to difficulty increase
7: The map "Outpost" is now dark and the weapon is equipped with a flashlight