You can verify the update is active by checking for "Ver. 1.2" on the title screen (top of the bottom screen). Ice Station Z – Update v1.2 3DS (EUR/JPN/USA) CIA
An "exclusion zone" was added around vehicles to prevent other players from stealing them in multiplayer. Ice Station Z – Update v1.2 3DS (EUR/JPN/USA) CIA
The update added a Dog Sled , a Snow Plough , and a new Boat . It also introduced the ability to ride as a passenger in most vehicles and use them to knock down zombies. You can verify the update is active by checking for "Ver