Franny

Beat the Game in Practice Mode.

Take out the Trash Bag from The Trash Bin in the kitchen and leave it somewhere else.

Open the Credits Tab.

Disarm a Burger while having stepped on it first.

Jump Out the Upper Attic's window without tying a Rope

Shoot Franny with the Toy Gun

Beat the Game on "Slim" or "Normal" Difficulty

Pick up all Guest Character Dolls at least once.

Eat 12 burgers (Or 8 in "Obese" Difficulty) on a single run and experience the Consequences.

If you stay near the Main Door Long enough you might receive a visit...

Juke Franny by playing Ring Around The Rosie around the Kitchen Table.

Beat the Game on "Obese" Difficulty

Find out What Franny's hidding behind the Locked Metal Trapdoor in the Attic.

Outrun Franny in "Obese" difficulty. (That'll be Hard)

Unlock all Escape Routes in any difficulty above "Practice"