Changes in v1.2 include
-Larger font size in the quick start rules
-Improved wording for cards with a stun effect
-Stat/ability changes to the gear cards: Stun Gun, Bazooka, Mecha Arms and Binoculars
-Minor ability changes to the Boss "Ninja Master"
-5th demo campaign added
If you already have a set printed everything you'd need to swap out to bring it up to date with v1.2 can be downloaded here.