D.W.

Dora Winifred, (prefers being called D.W.) is Arthur's little sister and an antagonist in Arthur's Nightmars

Behavior
D.W. becomes a threat on Night 3. She has a completely different behavior from the others. She slowly rises out of a hole in the ground located in every room. If the player stays in the same room for too long and D.W. fully enters the room, she will instantly kill the player. This makes her a massive problem as searching takes a while. When the player collects 6 Woogles, she rises quicker. If the player leaves the room before D.W. gets out, she will move to the next room and restart the cycle all over again.

Trivia
Upon killing the player, D.W. will shout "HEY!" This is the same scream from the theme song of the TV show when Arthur appeared on the TV screen. The scream making him fall backwards.