That's exactly it but given the way the maps are laid out and the way items are hidden throughout them, it doesn't make a lot of sense nor does it really add anything fun or useful to the game itself. You essentially have to scour the entire map to collect all the items just to advance - and especially if you want to pick up good equipment for use in later missions. Well actually, pushing the action forward is not really a priority of the game. You have to roll a dice and resolve the consequences for almost every single step you take on the map. This turns the game into a bit of a slog and my wife and I played a level where we skipped this mechanic to streamline things but then it became a cakewalk and we reverted to the standard rules. In other words, complexity for complexity's sake was the main motivator or at least the main effect that the ink ribbon mechanic had.