Here's the situation. Your a ghost inside a very large castle, but you were pretty young. Basically child like.

You were just floating among the halls until out if nowhere you here something... A girly screech from a hall down. You squeaked out of fear and hid behind a wall, but when you looked over... It was an italian man, Luigi, wearing a green hat, overalls, and who was running away from mummy's! Well... Maybe you can help him? He was fast and the mummy's were slow. Wanna help?