No eldritch horrors in the corridors, thankfully! But, at the expense of no cosmic beings, some of the corridors will be unusable and impassable. Things like debris blocking the entrance to the corridor in different stores, or not being able to find the key to unlock the door to access said corridor, is fairly common in the mall. One might suspect that the debris blocking some of the doors were meant to be barricades... Or, it's equally possible the ceiling happened to fall through there and block the doorway. Who knows?

So while some of it is accessible, a lot of the corridor is in disrepair. Interestingly enough, there's even some trash in there - lots of empty wrappers from different foods that can be linked to the food court inside the mall.