What is this about?Edit
Flat ASFR involves victims being either transformed or trapped in a two dimensional object such as a mirror, painting, playing card, or cardboard. In most cases, the victim becomes immobilized once trapped inside the two dimensional object, but there are rare cases in which the victim can move inside of the object. This is typically dependent on the material: victims are much more likely to be able to move in a mirror transformation than when they are transformed into a cardboard cut-out, for example.
How about the Victim?Edit
Flat transformations are arguably the hardest to judge how the victim is affected since it's the most physically altering transformation. Usually, the victims either do not recall the time spent transformed or act as if they are pressed up against an invisible wall.