When in either pits of 100 trials, use dottie to make you small. The enemies can;t see you when you are like this and you can easily sneak around and kill them with out taking much damage. This is especially useful when you are in a room with alot of enemies that shoot things at you ex. Crazy daisy's or magikoopas or hammer, boomerang, or firebros. Unless there is an enemy that needs to be dispatched in a special way, this is very effective and makes the pits way easier.