"It's a Lonely House..."

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Rosalina makes a apperance in FNaW:O as a easter egg. only on night 3 if you click the button on the computer several times she will appear. Rosalina also appears in a cutscene before attempting Night 5 where she seems to put Wario, Waluigi, Luigi, Peach and Mario in a portal.
Schermopname (1)

original Rosalina