A shopping trolley is an object in SAS Zombie Assault 4 that is similar to the Shallow Boxes, due to the fact that it can be pushed around by the player and zombies and that it can be destroyed. Although the player can not damage these, unless arcing from another zombie or object/door with an arc weapon such as the Trailblazer, any hit from any zombie will break a trolley instantly as they have 1 hp and as their main purpose is for background decoration. Shopping Trolleys can only be found in the Zombie Pods mission.
- There are a total of 6 trolleys that can be moved around and destroyed, however there are also 9 other trolleys at the entrance of the boss arena that are part of the background decoration.
- Putting points into Brute Strength will increase the movement speed at which you can push trolleys just like Explosive Barrels and Shallow Boxes.