the pig house
It takes speed after pressing sertin switches.
Go on the ghost house and go up a stem and walk into a door
well first of all there's no such thing as a ghost fruit. its called ghost mushroom and you first get it in the first ghost galaxy.
beat the sunken ghost ship
To get to the cannons, you need to find the secret exits in 1-3, 2-6, the Ghost House in World 3, the small castle in World 4, the Ghost House in World 5, and 6-6.
silly! its Luigis mansion
It depends because in New super Mario bros. it's a lush forest
You need to find the keys hidden in the levels that have a red circle around them.
kill i think 8 boos
Let the punching ghost do all the work.
Mushroom house, life house and star house
You do a favor for Merlee